| Coord 2000 | 01312-0338 |
Discov num | HJ 639 |
Comp | Coord arcsec 2000 | 01 31 13.60 -03 37 38.9 |
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| Date first | 1897 |
Date last | 2015 |
Obs | 10 |
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| Pa first | 98 |
Pa last | 100 |
P.A. Now (θ) | 100° |
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| Sep first | 4.5 |
Sep last | 4.6 |
Sep. Now (ρ) | 4.6" |
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| Mag pri | 10.37 |
Mag sec | 11.50 |
delta mag (ΔM) | 1.13 |
Spectral class | |||||
| Pri motion ra | -024 |
Sec motion ra | |||||||||
| Pri motion dec | -018 |
Sec motion dec | |||||||||
| Notes | |||||||||||
| Precise pa | 99.7 |
Precise sep | 4.579 |
Constellation | Cetus |
Tycho2 | 4685-02088-1 |
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| Gaia DR2 | 17000491648 |
| coord_2000 | discov_num | comp | epoch | obs | pa | sep | mag_pri | mag_sec | spectr | notes | coord_arcsec_2000 |
| 01312-0338 | HJ 639 | 2004 | 7 | 101 | 4.4 | 10.37 | 11.50 | D | 013113.60-033738.9 | ||
| 01312-0338 | HJ 639 | 2010 | 9 | 99 | 3.6 | 10.37 | 11.50 | 013113.60-033738.9 | |||
| 01312-0338 | HJ 639 | 2015 | 10 | 100 | 4.6 | 10.37 | 11.50 | 013113.60-033738.9 |