Coord 2000 | 20087+3130 |
Discov num | SEI 910 |
Comp | Coord arcsec 2000 | 20 08 39.17 +31 29 47.7 |
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Date first | 1893 |
Date last | 2015 |
Obs | 14 |
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Pa first | 122 |
Pa last | 105 |
P.A. Now (θ) | 105° |
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Sep first | 10.0 |
Sep last | 12.3 |
Sep. Now (ρ) | 12.3" |
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Mag pri | 11.66 |
Mag sec | 12.15 |
delta mag (ΔM) | 0.49 |
Spectral class | |||||
Pri motion ra | -003 |
Sec motion ra | +026 |
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Pri motion dec | -004 |
Sec motion dec | +004 |
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Notes |
Precise pa | 105.1 |
Precise sep | 12.264 |
Constellation | Cygnus |
SAO | 69493 |
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Tycho2 | 2671-01284-1 |
Gaia DR2 | 19300126848 |
coord_2000 | discov_num | comp | epoch | obs | pa | sep | mag_pri | mag_sec | spectr | notes | coord_arcsec_2000 |
20087+3130 | SEI 910 | 2006 | 7 | 106 | 12.4 | 11.66 | 12.21 | D | 200839.17+312947.7 | ||
20087+3130 | SEI 910 | 2010 | 9 | 106 | 12.0 | 11.66 | 12.15 | 200839.17+312947.7 | |||
20087+3130 | SEI 910 | 2015 | 10 | 105 | 12.3 | 11.66 | 12.15 | 200839.17+312947.7 |