| Coord 2000 | 20173+3837 |
Discov num | TDT2141 |
Comp | Coord arcsec 2000 | 20 17 20.76 +38 37 20.1 |
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| Date first | 1991 |
Date last | 2015 |
Obs | 4 |
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| Pa first | 98 |
Pa last | 96 |
P.A. Now (θ) | 96° |
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| Sep first | 1.3 |
Sep last | 1.3 |
Sep. Now (ρ) | 1.3" |
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| Mag pri | 11.27 |
Mag sec | 11.31 |
delta mag (ΔM) | 0.04 |
Spectral class | B8 (blue-white) |
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| Pri motion ra | -011 |
Sec motion ra | -011 |
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| Pri motion dec | -006 |
Sec motion dec | -006 |
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| Notes | |||||||||||
| Precise pa | 96.2 |
Precise sep | 1.298 |
Constellation | Cygnus |
Tycho2 | 3151-01565-1 |
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| Gaia DR2 | 2061322897496583296 |
HD | 228762 |
| coord_2000 | discov_num | comp | epoch | obs | pa | sep | mag_pri | mag_sec | spectr | notes | coord_arcsec_2000 |
| 20173+3837 | TDT2141 | 1991 | 1 | 98 | 1.3 | 11.27 | 11.31 | 201720.76+383720.1 | |||
| 20173+3837 | TDT2141 | 2000 | 2 | 99 | 1.2 | 11.27 | 11.31 | B8 | 201720.76+383720.1 | ||
| 20173+3837 | TDT2141 | 2015 | 3 | 96 | 1.3 | 11.27 | 11.31 | B8 | 201720.76+383720.1 |