Coord 2000 | 20181+1555 |
Discov num | J 553 |
Comp | Coord arcsec 2000 | 20 18 06.69 +15 54 09.5 |
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Date first | 1910 |
Date last | 2016 |
Obs | 16 |
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Pa first | 20 |
Pa last | 20 |
P.A. Now (θ) | 20° |
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Sep first | 4.2 |
Sep last | 3.7 |
Sep. Now (ρ) | 3.7" |
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Mag pri | 10.70 |
Mag sec | 11.90 |
delta mag (ΔM) | 1.2 |
Spectral class | B2+A2 (blue-white/white) |
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Pri motion ra | +005 |
Sec motion ra | |||||||||
Pri motion dec | -003 |
Sec motion dec | |||||||||
Notes | N
(See Notes) |
Precise pa | 19.6 |
Precise sep | 3.695 |
Constellation | Delphinus |
Tycho2 | 1631-00441-1 |
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Gaia DR2 | 98527206656 |
HD | 355372 |
coord_2000 | discov_num | comp | epoch | obs | pa | sep | mag_pri | mag_sec | spectr | notes | coord_arcsec_2000 |
20181+1555 | J 553 | 2001 | 11 | 21 | 3.6 | 9.40 | 10.50 | N D | 201806.69+155409.5 | ||
20181+1555 | J 553 | 2008 | 12 | 21 | 3.6 | 9.40 | 10.50 | N D | 201806.69+155409.5 | ||
20181+1555 | J 553 | 2016 | 16 | 20 | 3.7 | 10.60 | 11.90 | B2+A2 | N | 201806.69+155409.5 |