| Coord 2000 | 20309+0400 |
Discov num | BAL2538 |
Comp | Coord arcsec 2000 | 20 30 53.46 +03 59 59.2 |
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| Date first | 1910 |
Date last | 2014 |
Obs | 9 |
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| Pa first | 202 |
Pa last | 202 |
P.A. Now (θ) | 202° |
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| Sep first | 10.7 |
Sep last | 10.8 |
Sep. Now (ρ) | 10.8" |
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| Mag pri | 11.11 |
Mag sec | 12.80 |
delta mag (ΔM) | 1.69 |
Spectral class | |||||
| Pri motion ra | -001 |
Sec motion ra | -009 |
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| Pri motion dec | -014 |
Sec motion dec | -014 |
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| Notes | |||||||||||
| Precise pa | 201.6 |
Precise sep | 10.819 |
Constellation | Delphinus |
Tycho2 | 0518-01514-1 |
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| Gaia DR2 | 4245278407035954944 |
| coord_2000 | discov_num | comp | epoch | obs | pa | sep | mag_pri | mag_sec | spectr | notes | coord_arcsec_2000 |
| 20309+0400 | BAL2538 | 2006 | 3 | 202 | 10.8 | 11.11 | 12.80 | D | 203053.46+035959.2 | ||
| 20309+0400 | BAL2538 | 2010 | 6 | 202 | 10.8 | 11.11 | 12.80 | 203053.46+035959.2 | |||
| 20309+0400 | BAL2538 | 2014 | 9 | 202 | 10.8 | 11.11 | 12.80 | 203053.46+035959.2 |