Type | Star |
---|---|
Magnitude | 4.86 | Right Ascension | 20h 48' 56.4" (2000) |
Declination | 46° 6' 51" N |
Constellation | Cygnus |
Classification | B4Ia |
Andrew Cooper
Jun 17, 2023 Waikoloa, HI (map)
20cm f/6 Newtonian, Cave Astrola @ 76x
Seeing: 7 Transparency: 7 Moon: 0%
Yellow-white, an 11th magnitude companion visible 22" south
Gaia EDR3 data shows this to be a line of sight companion as paralax and proper motions do not match. Oddly the 11th magnitude star is closer with a parallax of 1.743mas versus 0.543mas for the 4.8 magnitude 55 Cyg.
Andrew Cooper
Sep 25, 2021 Waikoloa, HI (map)
20cm f/6 Newtonian, Cave Astrola @ 76x
Seeing: 6 Transparency: 6 Moon: 0%
Pale yellow, a 12th magnitude 22" companion not visible
57 Cygni | Bark1 | Barnard 349 |
Barnard 350 | Barnard 351 | Deneb |
HD 198237 | HD 198345 | HD 199098 |
HD 199579 | IC 5070 | IC 5076 |
NGC 6989 | NGC 6991 | NGC 6996 |
NGC 6997 | V2140 Cygni |
Drawings, descriptions, and CCD photos are copyright Andrew Cooper unless otherwise noted, no usage without permission.
A complete list of credits and sources can be found on the about page