| Coord 2000 | 20237+3937 |
Discov num | ALI1141 |
Comp | Coord arcsec 2000 | 20 23 41.10 +39 37 00.5 |
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| Date first | 1892 |
Date last | 2015 |
Obs | 11 |
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| Pa first | 8 |
Pa last | 21 |
P.A. Now (θ) | 21° |
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| Sep first | 7.3 |
Sep last | 11.5 |
Sep. Now (ρ) | 11.5" |
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| Mag pri | 10.90 |
Mag sec | 12.00 |
delta mag (ΔM) | 1.1 |
Spectral class | O9V (blue) |
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| Pri motion ra | -030 |
Sec motion ra | -003 |
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| Pri motion dec | -032 |
Sec motion dec | -001 |
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| Notes | |||||||||||
| Precise pa | 20.6 |
Precise sep | 11.476 |
Constellation | Cygnus |
SAO | 69949 |
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| Gaia DR2 | 2067437041135007616 |
| coord_2000 | discov_num | comp | epoch | obs | pa | sep | mag_pri | mag_sec | spectr | notes | coord_arcsec_2000 |
| 20237+3937 | ALI1141 | 1928 | 3 | 12 | 8.0 | 12.00 | 13.10 | 202308.57+393700.0 | |||
| 20237+3937 | ALI1141 | 2002 | 4 | 20 | 11.1 | 10.90 | 12.00 | 202341.10+393700.5 | |||
| 20237+3937 | ALI1141 | 2013 | 5 | 20 | 11.6 | 10.90 | 12.00 | O9V | 202341.10+393700.5 | ||
| 20237+3937 | ALI1141 | 2015 | 7 | 20 | 11.5 | 10.90 | 12.00 | O9V | 202341.10+393700.5 |