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HD 113375


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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.

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观测天体数据

星座:蒼蠅座
右阿森松:13h04m26.90s
赤纬:-64°47'25.4"
视星:8.537
距离:584.795 天文距离
右阿森松适当运动:-10.2
赤纬适当运动:-6.4
B-T magnitude:10.586
V-T magnitude:8.707

目录:
适当名称   (Edit)
HD 1989HD 113375
TYCHO-2 2000TYC 8997-2157-1
USNO-A2.0USNO-A2 0225-16016615
HIPHIP 63788

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