| Coord 2000 | 20021+3135 |
Discov num | SEI 798 |
Comp | Coord arcsec 2000 | 20 02 07.38 +31 34 57.0 |
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| Date first | 1893 |
Date last | 2015 |
Obs | 12 |
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| Pa first | 214 |
Pa last | 214 |
P.A. Now (θ) | 214° |
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| Sep first | 24.4 |
Sep last | 24.3 |
Sep. Now (ρ) | 24.3" |
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| Mag pri | 12.14 |
Mag sec | 12.09 |
delta mag (ΔM) | 0.05 |
Spectral class | |||||
| Pri motion ra | +001 |
Sec motion ra | +000 |
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| Pri motion dec | -003 |
Sec motion dec | +001 |
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| Notes | |||||||||||
| Precise pa | 213.6 |
Precise sep | 24.273 |
Constellation | Cygnus |
SAO | 69294 |
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| Tycho2 | 2670-00254-1 |
Gaia DR2 | 2030908958462930688 |
| coord_2000 | discov_num | comp | epoch | obs | pa | sep | mag_pri | mag_sec | spectr | notes | coord_arcsec_2000 |
| 20021+3135 | SEI 798 | 1998 | 5 | 214 | 24.3 | 11.98 | 11.98 | D | 200207.38+313457.0 | ||
| 20021+3135 | SEI 798 | 2002 | 6 | 214 | 24.3 | 11.98 | 11.98 | D | 200207.38+313457.0 | ||
| 20021+3135 | SEI 798 | 2010 | 7 | 214 | 24.3 | 12.14 | 12.09 | 200207.38+313457.0 | |||
| 20021+3135 | SEI 798 | 2015 | 8 | 214 | 24.3 | 12.14 | 12.09 | 200207.38+313457.0 |