Coord 2000 | 19404+3121 |
Discov num | SEI 657 |
Comp | AB |
Coord arcsec 2000 | 19 40 21.57 +31 21 26.4 |
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Date first | 1893 |
Date last | 2017 |
Obs | 13 |
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Pa first | 357 |
Pa last | 357 |
P.A. Now (θ) | 357° |
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Sep first | 19.2 |
Sep last | 19.3 |
Sep. Now (ρ) | 19.3" |
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Mag pri | 8.91 |
Mag sec | 11.01 |
delta mag (ΔM) | 2.1 |
Spectral class | F8V (yellow-white) |
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Pri motion ra | -001 |
Sec motion ra | +001 |
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Pri motion dec | -002 |
Sec motion dec | -001 |
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Notes |
Show | name | SAO | coord | wds_name | last | obs | pa | sep | mag1 | mag2 | d_mag | orb | current |
Show | 68670 | 19 40 22 +31 21 26 | COU 1163 Aa,Ab | 2012 | 8 | 166 | 0.1 | 9.50 | 9.50 | 0.00 | |||
Show | 68670 | 19 40 22 +31 21 26 | SEI 657 AB | 2017 | 13 | 357 | 19.3 | 8.91 | 11.01 | 2.10 | <=== |
Precise pa | 356.8 |
Precise sep | 19.313 |
Constellation | Cygnus |
SAO | 68670 |
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Tycho2 | 2656-04841-1 |
Gaia DR2 | 2033142689388971904 |
HD | 331099 |
coord_2000 | discov_num | comp | epoch | obs | pa | sep | mag_pri | mag_sec | spectr | notes | coord_arcsec_2000 |
19404+3121 | SEI 657 | AB | 2002 | 6 | 357 | 19.2 | 8.91 | 11.01 | D | 194021.57+312126.4 | |
19404+3121 | SEI 657 | AB | 2017 | 8 | 357 | 19.3 | 8.91 | 11.01 | F8V | 194021.57+312126.4 |