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Sept. 27-28, 2018 - Location: Davis Mountains west of Fort Davis, TX Telescope: Stellarvue SV102ED Mount: MI-250 Camera: ST-8300M Exposure: Lum = 120 min. R G & B = 90 min. each - 5 min. Sub-exposures Click on the image below to view at higher resolution. |
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NGC 6940 is an open cluster in the constellation Vulpecula approximately 2,500 light-years distant. The age of the cluster has been estimated to be around 1 billion years. The stars of the cluster are somewhat scattered with non-member field stars visible between cluster stars. The bright blue stars in the image are probably either foreground or background stars. The bright red star near the center of the image is the red giant FG Vulpeculae. It is a semiregular variable star that varies in magnitude between 9.0 and 9.5 approximately every 80 days.
Member of the Dark Sky Observatory Collaborative
1https://en.wikipedia.org/wiki/NGC_6940
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