| Coord 2000 | 00474-4709 |
Discov num | BRT 639 |
Comp | Coord arcsec 2000 | 00 47 28.59 -47 08 58.0 |
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| Date first | 1903 |
Date last | 2015 |
Obs | 7 |
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| Pa first | 0 |
Pa last | 7 |
P.A. Now (θ) | 7° |
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| Sep first | 4.2 |
Sep last | 5.1 |
Sep. Now (ρ) | 5.1" |
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| Mag pri | 12.58 |
Mag sec | 14.00 |
delta mag (ΔM) | 1.42 |
Spectral class | |||||
| Pri motion ra | +003 |
Sec motion ra | +016 |
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| Pri motion dec | -014 |
Sec motion dec | +090 |
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| Notes | |||||||||||
| Precise pa | 7.4 |
Precise sep | 5.078 |
Constellation | Hydra |
Tycho2 | 8031-00231-1 |
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| Gaia DR2 | 4975322246339498240 |
| coord_2000 | discov_num | comp | epoch | obs | pa | sep | mag_pri | mag_sec | spectr | notes | coord_arcsec_2000 |
| 00474-4709 | BRT 639 | 1999 | 3 | 8 | 5.1 | 12.58 | 14.00 | D | 004728.59-470858.0 | ||
| 00474-4709 | BRT 639 | 2015 | 6 | 8 | 5.1 | 12.58 | 14.00 | 004728.59-470858.0 |