Coord 2000 | 20215+3950 |
Discov num | SEI1103 |
Comp | Coord arcsec 2000 | 20 21 32.72 +39 49 45.6 |
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Date first | 1892 |
Date last | 2015 |
Obs | 14 |
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Pa first | 224 |
Pa last | 223 |
P.A. Now (θ) | 223° |
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Sep first | 16.9 |
Sep last | 17.0 |
Sep. Now (ρ) | 17" |
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Mag pri | 9.11 |
Mag sec | 10.85 |
delta mag (ΔM) | 1.74 |
Spectral class | B2Ib (blue-white) |
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Pri motion ra | -003 |
Sec motion ra | -004 |
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Pri motion dec | -007 |
Sec motion dec | -007 |
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Notes |
Precise pa | 223 |
Precise sep | 17.039 |
Constellation | Cygnus |
SAO | 69895 |
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HIP | 100391 |
Tycho2 | 3156-00479-1 |
Gaia DR2 | 50151685888 |
HD | 193946 |
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BD | BD+39 4151 |
Distance | 255.1 |
Distance ly | 832.14 |
coord_2000 | discov_num | comp | epoch | obs | pa | sep | mag_pri | mag_sec | spectr | notes | coord_arcsec_2000 |
20215+3950 | SEI1103 | 1998 | 6 | 223 | 17.1 | 9.11 | 10.85 | B2Ib | D | 202132.72+394945.6 | |
20215+3950 | SEI1103 | 2008 | 7 | 223 | 16.8 | 9.11 | 10.85 | B2Ib | D | 202132.72+394945.6 | |
20215+3950 | SEI1103 | 2010 | 9 | 223 | 16.9 | 9.11 | 10.85 | B2Ib | 202132.72+394945.6 | ||
20215+3950 | SEI1103 | 2015 | 10 | 223 | 17.0 | 9.11 | 10.85 | B2Ib | 202132.72+394945.6 |