| Coord 2000 | 20138+2945 |
Discov num | TOB 179 |
Comp | Coord arcsec 2000 | 20 13 49.93 +29 44 46.5 |
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| Date first | 1984 |
Date last | 2015 |
Obs | 9 |
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| Pa first | 92 |
Pa last | 91 |
P.A. Now (θ) | 91° |
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| Sep first | 22.7 |
Sep last | 23.6 |
Sep. Now (ρ) | 23.6" |
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| Mag pri | 10.74 |
Mag sec | 12.98 |
delta mag (ΔM) | 2.24 |
Spectral class | B2 (blue-white) |
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| Pri motion ra | -004 |
Sec motion ra | +011 |
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| Pri motion dec | -021 |
Sec motion dec | -017 |
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| Notes | |||||||||||
| Precise pa | 90.6 |
Precise sep | 23.638 |
Constellation | Cygnus |
Tycho2 | 2166-00241-1 |
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| Gaia DR2 | 2029611264174648576 |
| coord_2000 | discov_num | comp | epoch | obs | pa | sep | mag_pri | mag_sec | spectr | notes | coord_arcsec_2000 |
| 20138+2945 | TOB 179 | 1999 | 2 | 91 | 23.5 | 10.60 | 12.40 | D | 201349.93+294446.5 | ||
| 20138+2945 | TOB 179 | 2002 | 3 | 91 | 23.5 | 10.60 | 12.40 | D | 201349.93+294446.5 | ||
| 20138+2945 | TOB 179 | 2010 | 4 | 91 | 23.3 | 10.74 | 12.98 | B2 | 201349.93+294446.5 | ||
| 20138+2945 | TOB 179 | 2015 | 5 | 91 | 23.6 | 10.74 | 12.98 | B2 | 201349.93+294446.5 |