| Coord 2000 | 20173+3420 |
Discov num | SEI1064 |
Comp | Coord arcsec 2000 | 20 17 16.15 +34 20 08.0 |
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| Date first | 1893 |
Date last | 2015 |
Obs | 17 |
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| Pa first | 253 |
Pa last | 254 |
P.A. Now (θ) | 254° |
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| Sep first | 23.8 |
Sep last | 23.9 |
Sep. Now (ρ) | 23.9" |
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| Mag pri | 10.16 |
Mag sec | 10.67 |
delta mag (ΔM) | 0.51 |
Spectral class | A0 (white) |
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| Pri motion ra | -001 |
Sec motion ra | -002 |
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| Pri motion dec | -006 |
Sec motion dec | -004 |
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| Notes | N
(See Notes) |
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| Precise pa | 253.9 |
Precise sep | 23.868 |
Constellation | Cygnus |
Tycho2 | 2680-01487-1 |
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| Gaia DR2 | 2055557745716598912 |
HD | 228740 |
| coord_2000 | discov_num | comp | epoch | obs | pa | sep | mag_pri | mag_sec | spectr | notes | coord_arcsec_2000 |
| 20173+3420 | SEI1064 | 2000 | 8 | 254 | 23.8 | 10.16 | 10.67 | A0 | N D | 201716.15+342008.0 | |
| 20173+3420 | SEI1064 | 2010 | 9 | 254 | 23.7 | 10.16 | 10.67 | A0 | N D | 201716.15+342008.0 | |
| 20173+3420 | SEI1064 | 2011 | 10 | 254 | 23.8 | 10.16 | 10.67 | A0 | N D | 201716.15+342008.0 | |
| 20173+3420 | SEI1064 | 2015 | 13 | 254 | 23.9 | 10.16 | 10.67 | A0 | N | 201716.15+342008.0 |