Ubuntu 18.04 / 18.10 keeps crashing on hp elitebook 2740p





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Its my first time to use Linux, I just have tried some older versions last few days and none of them had the touch/pen working, and random crash used to happen.



I installed Ubuntu 18.10 on my old HP 2740p tablet PC, the touch and stylus are luckily working.



But unfortunately it keep crashing/restart after few seconds of starting or at the best cases after 5 or 10 minutes of use, making it impossible to use the system, even when I replaced it with 18.04 LTC, the problem remains.



It has nothing to do with overheating. by the way it works perfectly on windows 7 with no restarting issue, also working well but slower with windows 10.



I have read that some old intel thing is causing the crash and need to know what tweaks I need to do/try and how in a simple explanation.



My tablet specs:



Intel Core i7-620M (2.66-GHz, 4MB L3 cache)2 with Intel Turbo Boost -
Mobile Intel QM57 Express Chipset
- 4GB DDR3 PC3-10600 SDRAM (1333 MHz)3 -
Intel HD Graphics



THIS IS THE LOG: journalctl 



Mar 21 18:30:57 owner-HP-EliteBook-2740p-SJ621UC kernel:   AMD AuthenticAMD

Mar 21 18:30:57 owner-HP-EliteBook-2740p-SJ621UC kernel:   Centaur CentaurHauls

Mar 21 18:30:57 owner-HP-EliteBook-2740p-SJ621UC kernel: x86/fpu: x87 FPU will use FXSAV

Mar 21 18:30:57 owner-HP-EliteBook-2740p-SJ621UC kernel: e820: BIOS-provided physical RA

Mar 21 18:30:57 owner-HP-EliteBook-2740p-SJ621UC kernel: BIOS-e820: [mem 0x0000000000000

Mar 21 18:30:57 owner-HP-EliteBook-2740p-SJ621UC kernel: BIOS-e820: [mem 0x000000000009f

Mar 21 18:30:57 owner-HP-EliteBook-2740p-SJ621UC kernel: BIOS-e820: [mem 0x00000000000e0

Mar 21 18:30:57 owner-HP-EliteBook-2740p-SJ621UC kernel: BIOS-e820: [mem 0x0000000000100

Mar 21 18:30:57 owner-HP-EliteBook-2740p-SJ621UC kernel: BIOS-e820: [mem 0x00000000ba943

Mar 21 18:30:57 owner-HP-EliteBook-2740p-SJ621UC kernel: BIOS-e820: [mem 0x00000000bb043

Mar 21 18:30:57 owner-HP-EliteBook-2740p-SJ621UC kernel: BIOS-e820: [mem 0x00000000bb683

Mar 21 18:30:57 owner-HP-EliteBook-2740p-SJ621UC kernel: BIOS-e820: [mem 0x00000000bb7ff

Mar 21 18:30:57 owner-HP-EliteBook-2740p-SJ621UC kernel: BIOS-e820: [mem 0x00000000bb800

Mar 21 18:30:57 owner-HP-EliteBook-2740p-SJ621UC kernel: BIOS-e820: [mem 0x00000000e0000

Mar 21 18:30:57 owner-HP-EliteBook-2740p-SJ621UC kernel: BIOS-e820: [mem 0x00000000fec00

Mar 21 18:30:57 owner-HP-EliteBook-2740p-SJ621UC kernel: BIOS-e820: [mem 0x00000000fed10

Mar 21 18:30:57 owner-HP-EliteBook-2740p-SJ621UC kernel: BIOS-e820: [mem 0x00000000fed19

Mar 21 18:30:57 owner-HP-EliteBook-2740p-SJ621UC kernel: BIOS-e820: [mem 0x00000000fed1b

Mar 21 18:30:57 owner-HP-EliteBook-2740p-SJ621UC kernel: BIOS-e820: [mem 0x00000000fee00

Mar 21 18:30:57 owner-HP-EliteBook-2740p-SJ621UC kernel: BIOS-e820: [mem 0x00000000ffd00

Mar 21 18:30:57 owner-HP-EliteBook-2740p-SJ621UC kernel: BIOS-e820: [mem 0x0000000100000

Mar 21 18:30:57 owner-HP-EliteBook-2740p-SJ621UC kernel: NX (Execute Disable) protection

Mar 21 18:30:57 owner-HP-EliteBook-2740p-SJ621UC kernel: SMBIOS 2.6 present.

Mar 21 18:30:57 owner-HP-EliteBook-2740p-SJ621UC kernel: DMI: Hewlett-Packard HP EliteBo

Mar 21 18:30:57 owner-HP-EliteBook-2740p-SJ621UC kernel: e820: update [mem 0x00000000-0x

Mar 21 18:30:57 owner-HP-EliteBook-2740p-SJ621UC kernel: e820: remove [mem 0x000a0000-0x

Mar 21 18:30:57 owner-HP-EliteBook-2740p-SJ621UC kernel: e820: last_pfn = 0x138000 max_a

Mar 21 18:30:57 owner-HP-EliteBook-2740p-SJ621UC kernel: MTRR default type: uncachable



lines 1-34





crash







share|improve this question




















  • 1





    journalctl -b -1 -e will show you the last page of log entries from the 1th previous reboot.

    – waltinator
    Mar 21 at 2:40











  • I have added the log to the question And by the way I moved to Kubuntu 16.04 and the crash problem remains

    – Ahmed B
    Mar 21 at 17:50













  • You only posted the First page of the log. Run the exact command I specified, not just journalctl

    – waltinator
    Mar 21 at 18:32


















0















Its my first time to use Linux, I just have tried some older versions last few days and none of them had the touch/pen working, and random crash used to happen.



I installed Ubuntu 18.10 on my old HP 2740p tablet PC, the touch and stylus are luckily working.



But unfortunately it keep crashing/restart after few seconds of starting or at the best cases after 5 or 10 minutes of use, making it impossible to use the system, even when I replaced it with 18.04 LTC, the problem remains.



It has nothing to do with overheating. by the way it works perfectly on windows 7 with no restarting issue, also working well but slower with windows 10.



I have read that some old intel thing is causing the crash and need to know what tweaks I need to do/try and how in a simple explanation.



My tablet specs:



Intel Core i7-620M (2.66-GHz, 4MB L3 cache)2 with Intel Turbo Boost -
Mobile Intel QM57 Express Chipset
- 4GB DDR3 PC3-10600 SDRAM (1333 MHz)3 -
Intel HD Graphics



THIS IS THE LOG: journalctl 



Mar 21 18:30:57 owner-HP-EliteBook-2740p-SJ621UC kernel:   AMD AuthenticAMD

Mar 21 18:30:57 owner-HP-EliteBook-2740p-SJ621UC kernel:   Centaur CentaurHauls

Mar 21 18:30:57 owner-HP-EliteBook-2740p-SJ621UC kernel: x86/fpu: x87 FPU will use FXSAV

Mar 21 18:30:57 owner-HP-EliteBook-2740p-SJ621UC kernel: e820: BIOS-provided physical RA

Mar 21 18:30:57 owner-HP-EliteBook-2740p-SJ621UC kernel: BIOS-e820: [mem 0x0000000000000

Mar 21 18:30:57 owner-HP-EliteBook-2740p-SJ621UC kernel: BIOS-e820: [mem 0x000000000009f

Mar 21 18:30:57 owner-HP-EliteBook-2740p-SJ621UC kernel: BIOS-e820: [mem 0x00000000000e0

Mar 21 18:30:57 owner-HP-EliteBook-2740p-SJ621UC kernel: BIOS-e820: [mem 0x0000000000100

Mar 21 18:30:57 owner-HP-EliteBook-2740p-SJ621UC kernel: BIOS-e820: [mem 0x00000000ba943

Mar 21 18:30:57 owner-HP-EliteBook-2740p-SJ621UC kernel: BIOS-e820: [mem 0x00000000bb043

Mar 21 18:30:57 owner-HP-EliteBook-2740p-SJ621UC kernel: BIOS-e820: [mem 0x00000000bb683

Mar 21 18:30:57 owner-HP-EliteBook-2740p-SJ621UC kernel: BIOS-e820: [mem 0x00000000bb7ff

Mar 21 18:30:57 owner-HP-EliteBook-2740p-SJ621UC kernel: BIOS-e820: [mem 0x00000000bb800

Mar 21 18:30:57 owner-HP-EliteBook-2740p-SJ621UC kernel: BIOS-e820: [mem 0x00000000e0000

Mar 21 18:30:57 owner-HP-EliteBook-2740p-SJ621UC kernel: BIOS-e820: [mem 0x00000000fec00

Mar 21 18:30:57 owner-HP-EliteBook-2740p-SJ621UC kernel: BIOS-e820: [mem 0x00000000fed10

Mar 21 18:30:57 owner-HP-EliteBook-2740p-SJ621UC kernel: BIOS-e820: [mem 0x00000000fed19

Mar 21 18:30:57 owner-HP-EliteBook-2740p-SJ621UC kernel: BIOS-e820: [mem 0x00000000fed1b

Mar 21 18:30:57 owner-HP-EliteBook-2740p-SJ621UC kernel: BIOS-e820: [mem 0x00000000fee00

Mar 21 18:30:57 owner-HP-EliteBook-2740p-SJ621UC kernel: BIOS-e820: [mem 0x00000000ffd00

Mar 21 18:30:57 owner-HP-EliteBook-2740p-SJ621UC kernel: BIOS-e820: [mem 0x0000000100000

Mar 21 18:30:57 owner-HP-EliteBook-2740p-SJ621UC kernel: NX (Execute Disable) protection

Mar 21 18:30:57 owner-HP-EliteBook-2740p-SJ621UC kernel: SMBIOS 2.6 present.

Mar 21 18:30:57 owner-HP-EliteBook-2740p-SJ621UC kernel: DMI: Hewlett-Packard HP EliteBo

Mar 21 18:30:57 owner-HP-EliteBook-2740p-SJ621UC kernel: e820: update [mem 0x00000000-0x

Mar 21 18:30:57 owner-HP-EliteBook-2740p-SJ621UC kernel: e820: remove [mem 0x000a0000-0x

Mar 21 18:30:57 owner-HP-EliteBook-2740p-SJ621UC kernel: e820: last_pfn = 0x138000 max_a

Mar 21 18:30:57 owner-HP-EliteBook-2740p-SJ621UC kernel: MTRR default type: uncachable



lines 1-34





crash







share|improve this question




















  • 1





    journalctl -b -1 -e will show you the last page of log entries from the 1th previous reboot.

    – waltinator
    Mar 21 at 2:40











  • I have added the log to the question And by the way I moved to Kubuntu 16.04 and the crash problem remains

    – Ahmed B
    Mar 21 at 17:50













  • You only posted the First page of the log. Run the exact command I specified, not just journalctl

    – waltinator
    Mar 21 at 18:32














0












0








0








Its my first time to use Linux, I just have tried some older versions last few days and none of them had the touch/pen working, and random crash used to happen.



I installed Ubuntu 18.10 on my old HP 2740p tablet PC, the touch and stylus are luckily working.



But unfortunately it keep crashing/restart after few seconds of starting or at the best cases after 5 or 10 minutes of use, making it impossible to use the system, even when I replaced it with 18.04 LTC, the problem remains.



It has nothing to do with overheating. by the way it works perfectly on windows 7 with no restarting issue, also working well but slower with windows 10.



I have read that some old intel thing is causing the crash and need to know what tweaks I need to do/try and how in a simple explanation.



My tablet specs:



Intel Core i7-620M (2.66-GHz, 4MB L3 cache)2 with Intel Turbo Boost -
Mobile Intel QM57 Express Chipset
- 4GB DDR3 PC3-10600 SDRAM (1333 MHz)3 -
Intel HD Graphics



THIS IS THE LOG: journalctl 



Mar 21 18:30:57 owner-HP-EliteBook-2740p-SJ621UC kernel:   AMD AuthenticAMD

Mar 21 18:30:57 owner-HP-EliteBook-2740p-SJ621UC kernel:   Centaur CentaurHauls

Mar 21 18:30:57 owner-HP-EliteBook-2740p-SJ621UC kernel: x86/fpu: x87 FPU will use FXSAV

Mar 21 18:30:57 owner-HP-EliteBook-2740p-SJ621UC kernel: e820: BIOS-provided physical RA

Mar 21 18:30:57 owner-HP-EliteBook-2740p-SJ621UC kernel: BIOS-e820: [mem 0x0000000000000

Mar 21 18:30:57 owner-HP-EliteBook-2740p-SJ621UC kernel: BIOS-e820: [mem 0x000000000009f

Mar 21 18:30:57 owner-HP-EliteBook-2740p-SJ621UC kernel: BIOS-e820: [mem 0x00000000000e0

Mar 21 18:30:57 owner-HP-EliteBook-2740p-SJ621UC kernel: BIOS-e820: [mem 0x0000000000100

Mar 21 18:30:57 owner-HP-EliteBook-2740p-SJ621UC kernel: BIOS-e820: [mem 0x00000000ba943

Mar 21 18:30:57 owner-HP-EliteBook-2740p-SJ621UC kernel: BIOS-e820: [mem 0x00000000bb043

Mar 21 18:30:57 owner-HP-EliteBook-2740p-SJ621UC kernel: BIOS-e820: [mem 0x00000000bb683

Mar 21 18:30:57 owner-HP-EliteBook-2740p-SJ621UC kernel: BIOS-e820: [mem 0x00000000bb7ff

Mar 21 18:30:57 owner-HP-EliteBook-2740p-SJ621UC kernel: BIOS-e820: [mem 0x00000000bb800

Mar 21 18:30:57 owner-HP-EliteBook-2740p-SJ621UC kernel: BIOS-e820: [mem 0x00000000e0000

Mar 21 18:30:57 owner-HP-EliteBook-2740p-SJ621UC kernel: BIOS-e820: [mem 0x00000000fec00

Mar 21 18:30:57 owner-HP-EliteBook-2740p-SJ621UC kernel: BIOS-e820: [mem 0x00000000fed10

Mar 21 18:30:57 owner-HP-EliteBook-2740p-SJ621UC kernel: BIOS-e820: [mem 0x00000000fed19

Mar 21 18:30:57 owner-HP-EliteBook-2740p-SJ621UC kernel: BIOS-e820: [mem 0x00000000fed1b

Mar 21 18:30:57 owner-HP-EliteBook-2740p-SJ621UC kernel: BIOS-e820: [mem 0x00000000fee00

Mar 21 18:30:57 owner-HP-EliteBook-2740p-SJ621UC kernel: BIOS-e820: [mem 0x00000000ffd00

Mar 21 18:30:57 owner-HP-EliteBook-2740p-SJ621UC kernel: BIOS-e820: [mem 0x0000000100000

Mar 21 18:30:57 owner-HP-EliteBook-2740p-SJ621UC kernel: NX (Execute Disable) protection

Mar 21 18:30:57 owner-HP-EliteBook-2740p-SJ621UC kernel: SMBIOS 2.6 present.

Mar 21 18:30:57 owner-HP-EliteBook-2740p-SJ621UC kernel: DMI: Hewlett-Packard HP EliteBo

Mar 21 18:30:57 owner-HP-EliteBook-2740p-SJ621UC kernel: e820: update [mem 0x00000000-0x

Mar 21 18:30:57 owner-HP-EliteBook-2740p-SJ621UC kernel: e820: remove [mem 0x000a0000-0x

Mar 21 18:30:57 owner-HP-EliteBook-2740p-SJ621UC kernel: e820: last_pfn = 0x138000 max_a

Mar 21 18:30:57 owner-HP-EliteBook-2740p-SJ621UC kernel: MTRR default type: uncachable



lines 1-34





crash







share|improve this question
















Its my first time to use Linux, I just have tried some older versions last few days and none of them had the touch/pen working, and random crash used to happen.



I installed Ubuntu 18.10 on my old HP 2740p tablet PC, the touch and stylus are luckily working.



But unfortunately it keep crashing/restart after few seconds of starting or at the best cases after 5 or 10 minutes of use, making it impossible to use the system, even when I replaced it with 18.04 LTC, the problem remains.



It has nothing to do with overheating. by the way it works perfectly on windows 7 with no restarting issue, also working well but slower with windows 10.



I have read that some old intel thing is causing the crash and need to know what tweaks I need to do/try and how in a simple explanation.



My tablet specs:



Intel Core i7-620M (2.66-GHz, 4MB L3 cache)2 with Intel Turbo Boost -
Mobile Intel QM57 Express Chipset
- 4GB DDR3 PC3-10600 SDRAM (1333 MHz)3 -
Intel HD Graphics



THIS IS THE LOG: journalctl 



Mar 21 18:30:57 owner-HP-EliteBook-2740p-SJ621UC kernel:   AMD AuthenticAMD

Mar 21 18:30:57 owner-HP-EliteBook-2740p-SJ621UC kernel:   Centaur CentaurHauls

Mar 21 18:30:57 owner-HP-EliteBook-2740p-SJ621UC kernel: x86/fpu: x87 FPU will use FXSAV

Mar 21 18:30:57 owner-HP-EliteBook-2740p-SJ621UC kernel: e820: BIOS-provided physical RA

Mar 21 18:30:57 owner-HP-EliteBook-2740p-SJ621UC kernel: BIOS-e820: [mem 0x0000000000000

Mar 21 18:30:57 owner-HP-EliteBook-2740p-SJ621UC kernel: BIOS-e820: [mem 0x000000000009f

Mar 21 18:30:57 owner-HP-EliteBook-2740p-SJ621UC kernel: BIOS-e820: [mem 0x00000000000e0

Mar 21 18:30:57 owner-HP-EliteBook-2740p-SJ621UC kernel: BIOS-e820: [mem 0x0000000000100

Mar 21 18:30:57 owner-HP-EliteBook-2740p-SJ621UC kernel: BIOS-e820: [mem 0x00000000ba943

Mar 21 18:30:57 owner-HP-EliteBook-2740p-SJ621UC kernel: BIOS-e820: [mem 0x00000000bb043

Mar 21 18:30:57 owner-HP-EliteBook-2740p-SJ621UC kernel: BIOS-e820: [mem 0x00000000bb683

Mar 21 18:30:57 owner-HP-EliteBook-2740p-SJ621UC kernel: BIOS-e820: [mem 0x00000000bb7ff

Mar 21 18:30:57 owner-HP-EliteBook-2740p-SJ621UC kernel: BIOS-e820: [mem 0x00000000bb800

Mar 21 18:30:57 owner-HP-EliteBook-2740p-SJ621UC kernel: BIOS-e820: [mem 0x00000000e0000

Mar 21 18:30:57 owner-HP-EliteBook-2740p-SJ621UC kernel: BIOS-e820: [mem 0x00000000fec00

Mar 21 18:30:57 owner-HP-EliteBook-2740p-SJ621UC kernel: BIOS-e820: [mem 0x00000000fed10

Mar 21 18:30:57 owner-HP-EliteBook-2740p-SJ621UC kernel: BIOS-e820: [mem 0x00000000fed19

Mar 21 18:30:57 owner-HP-EliteBook-2740p-SJ621UC kernel: BIOS-e820: [mem 0x00000000fed1b

Mar 21 18:30:57 owner-HP-EliteBook-2740p-SJ621UC kernel: BIOS-e820: [mem 0x00000000fee00

Mar 21 18:30:57 owner-HP-EliteBook-2740p-SJ621UC kernel: BIOS-e820: [mem 0x00000000ffd00

Mar 21 18:30:57 owner-HP-EliteBook-2740p-SJ621UC kernel: BIOS-e820: [mem 0x0000000100000

Mar 21 18:30:57 owner-HP-EliteBook-2740p-SJ621UC kernel: NX (Execute Disable) protection

Mar 21 18:30:57 owner-HP-EliteBook-2740p-SJ621UC kernel: SMBIOS 2.6 present.

Mar 21 18:30:57 owner-HP-EliteBook-2740p-SJ621UC kernel: DMI: Hewlett-Packard HP EliteBo

Mar 21 18:30:57 owner-HP-EliteBook-2740p-SJ621UC kernel: e820: update [mem 0x00000000-0x

Mar 21 18:30:57 owner-HP-EliteBook-2740p-SJ621UC kernel: e820: remove [mem 0x000a0000-0x

Mar 21 18:30:57 owner-HP-EliteBook-2740p-SJ621UC kernel: e820: last_pfn = 0x138000 max_a

Mar 21 18:30:57 owner-HP-EliteBook-2740p-SJ621UC kernel: MTRR default type: uncachable



lines 1-34





crash




crash






share|improve this question















share|improve this question













share|improve this question




share|improve this question








edited Mar 21 at 18:31









waltinator

22.9k74169




22.9k74169










asked Mar 21 at 1:58









Ahmed B Ahmed B

12




12








  • 1





    journalctl -b -1 -e will show you the last page of log entries from the 1th previous reboot.

    – waltinator
    Mar 21 at 2:40











  • I have added the log to the question And by the way I moved to Kubuntu 16.04 and the crash problem remains

    – Ahmed B
    Mar 21 at 17:50













  • You only posted the First page of the log. Run the exact command I specified, not just journalctl

    – waltinator
    Mar 21 at 18:32














  • 1





    journalctl -b -1 -e will show you the last page of log entries from the 1th previous reboot.

    – waltinator
    Mar 21 at 2:40











  • I have added the log to the question And by the way I moved to Kubuntu 16.04 and the crash problem remains

    – Ahmed B
    Mar 21 at 17:50













  • You only posted the First page of the log. Run the exact command I specified, not just journalctl

    – waltinator
    Mar 21 at 18:32








1




1





journalctl -b -1 -e will show you the last page of log entries from the 1th previous reboot.

– waltinator
Mar 21 at 2:40





journalctl -b -1 -e will show you the last page of log entries from the 1th previous reboot.

– waltinator
Mar 21 at 2:40













I have added the log to the question And by the way I moved to Kubuntu 16.04 and the crash problem remains

– Ahmed B
Mar 21 at 17:50







I have added the log to the question And by the way I moved to Kubuntu 16.04 and the crash problem remains

– Ahmed B
Mar 21 at 17:50















You only posted the First page of the log. Run the exact command I specified, not just journalctl

– waltinator
Mar 21 at 18:32





You only posted the First page of the log. Run the exact command I specified, not just journalctl

– waltinator
Mar 21 at 18:32










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數位音樂下載

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數位音樂下載 為非以「實體」方式來販賣音樂的相關產品，而使用數位格式如mp3、AAC等文件格式來進行銷售販賣的一种音乐产业形式。著名的數位音樂下載服務商有iTunes Store、RecoChoku、Google Play音乐和微软Zune等。数字音乐下载在二十一世纪初一度风靡全球， [1] [2] 使得传统唱片产业走向衰落，但其自身也在2010年代流媒体音乐服务如Apple Music、Spotify等的挤压下迅速失去市场份额。 [3] [4] 数字音乐下载有便于携带、传播迅速、制作简单成本低等优点，与流媒体音乐相比也能更好保障音乐人权益； [5] 但它同时很可能带来侵犯版权和滥用的情形， [6] 也给音乐产业带来了诸多不利影响。数字音乐下载为音乐人和乐迷提供了更加便捷直接的交流渠道，也一定程度上推动了网络音乐人的出现和独立音乐的迅速发展。 [7] 目录 1 历史 1.1 技术积淀（1987-2000） 1.2 出现与兴起（2000-2004） 1.3 唱片市场的颠覆者（2004-2007） 1.4 巅峰和衰落（2005-2013） 1.5 摇摇欲坠的现状与不可预知的明天（2014至今） 2 主要文件格式 2.1 PCM编码格式 2.1.1 WAV 2.1.2 APE 2.1.3 FLAC 2.2 苹果推出的无损文件格式 2.2.1 AIFF 2.2.2 ALAC 2.3 有损压缩格式 2.3.1 MP3 2.3.2 AAC 3 主要市场 3.1 iTunes Store 3.2 Google Play音乐商店 3.3 亚马逊音乐商店 3.4 部分其他音乐商店 4 影响与评价 4.1 对音乐产业的影响 4.2 对科技行业的影响 4.3 正面评价 4.4 负面评价 4.4.1 侵权问题 4.4.2 经营模式不明晰 4.4.3 不适应移动时代 4.5 文化现象 5 延伸阅读 6 参考资料 历史 苹果iTunes+iPod的软硬件搭配让数字音...
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When can things happen in Etherscan, such as the picture below?

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2 I don't know why balance of the address is 0. when can this situation? etherscan balances share | improve this question asked yesterday Ru Hi Ru Hi 11 1 New contributor Ru Hi is a new contributor to this site. Take care in asking for clarification, commenting, and answering. Check out our Code of Conduct. add a comment  |  ...
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格利澤436b

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格利泽436b 太陽系外行星 太陽系外行星列表 艺术家笔下的格利泽436b 母恆星 母恆星 Gliese 436 星座 獅子座 赤經 ( α ) 11 h  42 m  11.0941 s [1] 赤緯 ( δ ) +26° 42′ 23.652″ [1] 距離 33.4 ly (10.2 pc) 光譜類型 M2.5 V [1] 軌道參數 半长轴 ( a ) 0.0291±0.0004 [2] AU 軌道離心率 ( e ) 0.150±0.012 [2] 公轉週期 ( P ) 2.643904±0.000005 [3] d (0.00723849 y) 軌道傾角 ( i ) 85.8 +0.21 −0.25 [3] ° 角距 ( θ ) 2.794 mas 近星點時間 ( T 0 ) 2,451,551.716 ±0.01 JD 半振幅 ( K ) 18.68±0.8 m/s 物理性质 质量 ( m ) 22.2±1.0 [2] M ⊕ 半徑 ( r ) 4.327±0.183 [2] [4] R ⊕ 密度 ( ρ ) 1.51 g cm -3 表面重力 ( g ) 1.18 g 溫度 ( T ) 712±36 [2] K 發現 發現時間 2004 發現者 巴特勒、沃格特、 馬西 et al. 發現方法 徑向速度、凌日法 發現地點 美國加利福尼亞州 發表論文 出版 其他名稱 Ross 905 b, GJ 436 b, [5] LTT 13213 b, GCTP 2704.10 b, LHS 310, AC+27:28217 b, Vyssotsky 616 b, HIP 57087 b, GEN# +9.80120068 b, LP 319-75 b, G 121-7 b, LSPM J1142+2642 b, 1RXS J114211.9+264328 b, ASCC 683818 b, G 147-68 b, UCAC2 41198281 b, BP...
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