| Coord 2000 | 20187+4113 |
Discov num | COU2640 |
Comp | Coord arcsec 2000 | 20 18 42.32 +41 13 31.1 |
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| Date first | 1991 |
Date last | 2010 |
Obs | 4 |
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| Pa first | 262 |
Pa last | 265 |
P.A. Now (θ) | 265° |
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| Sep first | 0.4 |
Sep last | 0.5 |
Sep. Now (ρ) | 0.5" |
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| Mag pri | 10.72 |
Mag sec | 10.71 |
delta mag (ΔM) | 0.01 |
Spectral class | G5 (yellow) |
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| Pri motion ra | +005 |
Sec motion ra | +005 |
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| Pri motion dec | +002 |
Sec motion dec | +002 |
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| Notes | |||||||||||
| Precise pa | 265 |
Precise sep | 0.528 |
Constellation | Hydra |
Tycho2 | 3155-00011-1 |
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| Gaia DR2 | 2068380795768144256 |
HD | 228864 |
| coord_2000 | discov_num | comp | epoch | obs | pa | sep | mag_pri | mag_sec | spectr | notes | coord_arcsec_2000 |
| 20187+4113 | COU2640 | 1991 | 2 | 262 | 0.5 | 10.72 | 10.71 | 201842.32+411331.1 | |||
| 20187+4113 | COU2640 | 2010 | 4 | 265 | 0.5 | 10.72 | 10.71 | 201842.32+411331.1 |