首页     To Survive in the Universe    
Services
    Why to Inhabit     Top Contributors     天文图片     收集     论坛     Blog New!     常见问题     登录  
→ Adopt this star  

HD 112854


目录

图像

上传图像

DSS Images   Other Images


相关文章

Preferred frequency for interstellar communications
It is suggested that the 4829.659-MHz line frequency of the1(11)-to-1(10) rotational transition of formaldehyde is a plausiblefrequency to monitor for the purpose of detecting interstellarcommunications. The formaldehyde line is of interest because, as aresult of the antimaser effect, it exhibits a very low excitationtemperature. The background radiation temperature in the direction ofdark clouds is below the 3 K background temperature; the backgroundnoise temperature, lowered approximately 1 K, is lower than at any otherfrequency band.

提交文章


相关链接

  • - 没有找到链接 -
提交链接


下列团体成员


观测天体数据

星座:半人馬座
右阿森松:13h00m40.40s
赤纬:-62°39'57.2"
视星:8.419
距离:131.579 天文距离
右阿森松适当运动:-59.7
赤纬适当运动:-68.7
B-T magnitude:9.518
V-T magnitude:8.51

目录:
适当名称
HD 1989HD 112854
TYCHO-2 2000TYC 8993-258-1
USNO-A2.0USNO-A2 0225-15889150
HIPHIP 63499

→ 要求更多目录从vizier