Alfirk
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Alfirk, roughly translated 'the flock,' is the name of a triple star system that is classified as β Cephei (Beta Cephei). It is a part of the outline of the Cepheus constellation. The main star is a blue subgiant and gives it the distinctive blue color.
Image details
| Telescope: | Stellina | |
| Length: | 400mm | |
| Aperture: | 80mm | |
| F-stop: | f/5.0 | |
| Sessions: | 1 | |
| Captured: | 2021-10-09 to 2021-10-09 | |
| Lights: | 21 | |
| Exposure: | 10 | |
| Total exposure: | 3 m | |
| Ra: | 21h 28m 15.8s | |
| Dec: | +70° 34' 30.934 | |
| Size: | 61.98 x 41.54 arcmin | |
| Radius: | 0.622 deg | |
| Scale: | 0.549 arcsec/pixel |