| Coord 2000 | 00495+4404 |
Discov num | HDS 109 |
Comp | Coord arcsec 2000 | 00 49 32.74 +44 03 33.8 |
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| Date first | 1991 |
Date last | 2013 |
Obs | 17 |
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| Pa first | 85 |
Pa last | 136 |
P.A. Now (θ) | 113.6° |
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| Sep first | 0.3 |
Sep last | 0.2 |
Sep. Now (ρ) | 0.34" |
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| Mag pri | 8.02 |
Mag sec | 10.32 |
delta mag (ΔM) | 2.3 |
Spectral class | G0 (yellow) |
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| Pri motion ra | -070 |
Sec motion ra | |||||||||
| Pri motion dec | -069 |
Sec motion dec | |||||||||
| Notes | O
(Orbital solution) |
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| Precise pa | 136.1 |
Precise sep | 0.191 |
Constellation | Hydra |
SAO | 36695 |
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| HIP | 3857 |
Tycho2 | 2809-01555-1 |
Gaia DR2 | 375984293246567296 |
HD | 4712 |
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| BD | BD+43 159 |
Distance | 67.7 |
Distance ly | 220.84 |
last precise pa | 136.1 |
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| last precise sep | 0.191 |
| Period (P) | 46.64y | Periastron (T) | 2009.69y | Semi-major axis (a) | 0.253a | |||
| Eccentricity (e) | 0.752 | Inclination (i) | 133.5° | Longitude of periastron (ω) | 227.5° | |||
| Node (Ω) | 131.1° | Note | Grade | 3 | (1=Definitive, 9=Indet.) | |||
| Equinox | 2000 | Last observation | 2012 |
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Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st. |
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 Measures: green=micrometric, blue=interferometric, purple=photographic |
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| coord_2000 | discov_num | comp | epoch | obs | pa | sep | mag_pri | mag_sec | spectr | notes | coord_arcsec_2000 |
| 00495+4404 | HDS 109 | 2006 | 11 | 8 | 0.1 | 8.02 | 10.32 | G0 | D | 004932.74+440333.8 | |
| 00495+4404 | HDS 109 | 2007 | 13 | 348 | 0.1 | 8.02 | 10.32 | G0 | D | 004932.74+440333.8 | |
| 00495+4404 | HDS 109 | 2008 | 14 | 328 | 0.1 | 8.02 | 10.32 | G0 | D | 004932.74+440333.8 | |
| 00495+4404 | HDS 109 | 2013 | 17 | 136 | 0.2 | 8.02 | 10.32 | G0 | O | 004932.74+440333.8 |