| Coord 2000 | 18237+3821 |
Discov num | HO 431 |
Comp | Coord arcsec 2000 | 18 23 44.07 +38 20 42.3 |
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| Date first | 1892 |
Date last | 2015 |
Obs | 12 |
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| Pa first | 359 |
Pa last | 4 |
P.A. Now (θ) | 4° |
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| Sep first | 21.2 |
Sep last | 19.8 |
Sep. Now (ρ) | 19.8" |
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| Mag pri | 6.91 |
Mag sec | 12.30 |
delta mag (ΔM) | 5.39 |
Spectral class | A0III (white) |
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| Pri motion ra | -010 |
Sec motion ra | |||||||||
| Pri motion dec | +017 |
Sec motion dec | |||||||||
| Notes | |||||||||||
| Precise pa | 3.6 |
Precise sep | 19.78 |
Constellation | Lyra |
SAO | 66933 |
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| HIP | 90140 |
Tycho2 | 3104-01010-1 |
Gaia DR2 | 2108224455757800832 |
HD | 169617 |
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| BD | BD+38 3159 |
Distance | 167.5 |
Distance ly | 546.38 |
| coord_2000 | discov_num | comp | epoch | obs | pa | sep | mag_pri | mag_sec | spectr | notes | coord_arcsec_2000 |
| 18237+3821 | HO 431 | 1998 | 4 | 5 | 20.0 | 6.80 | 12.30 | A0III | D | 182344.07+382042.3 | |
| 18237+3821 | HO 431 | 2002 | 5 | 5 | 20.3 | 6.80 | 12.30 | A0III | D | 182344.07+382042.3 | |
| 18237+3821 | HO 431 | 2010 | 6 | 5 | 19.2 | 6.91 | 12.30 | A0III | 182344.07+382042.3 | ||
| 18237+3821 | HO 431 | 2015 | 7 | 4 | 19.8 | 6.91 | 12.30 | A0III | 182344.07+382042.3 |