All names: UCAC4 718-046706, GALEXJ07013+5329, GALEX J070123.1+532938, Gaia DR3 981727582818800128, UCAC3 287-97872, GSC2.3 N7HL010126, TIC 252921554, LAMOST J070123.22+532937.8, USNO-A2.0 1425-06800179, Gaia DR2 981727582818800128, GSC2 N211322110126, HS 0657+5333, 2MASS J07012323+5329381
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 07 01 23.11 | 07 01 23.22 (0.03) | ||
| Declination | 53 29 38.83 | 53 29 37.94 (0.03) | ||
| Spectral type | He-sdO | sdOHe | ||
| Effective temperature | [K] | 67230.0 (3880) | ||
| log(g) | [cgs] | 5.60 (0.2) | ||
| Mass | [M☉] | |||
| log(Luminosity) | [L☉] | |||
| Cooling age | [Gyr] | |||
| log(H/He) | ||||
| log(C/He) | ||||
| log(Ca/He) | ||||
| log(Ca/H) | ||||
| Parallax | [mas] | 0.24 (0.06) | 0.38 (0.04) | |
| Distance | [pc] | 4206.98 (1117) | 2632.96 (299) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | 7.401 (0.09) | 7.264 (0.04) | |
| Proper motion (declination) | [mas/yr] | -15.377 (0.07) | -15.403 (0.03) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 14.72 (0.02) | |||
| V magnitude | 14.96 (0.02) | |||
| R magnitude | 15.41 (0.1) | |||
| I magnitude | ||||
| J magnitude | 15.63 (0.06) | 15.63 (0.06) | ||
| H magnitude | 15.63 (0.1) | 15.63 (0.1) | ||
| K magnitude | 15.72 (0.2) | 15.72 (0.2) | ||
| u magnitude | ||||
| g magnitude | 14.74 (0.01) | |||
| r magnitude | 15.16 (0.05) | |||
| i magnitude | 15.42 (0.01) | |||
| z magnitude | ||||
| G magnitude | 14.93 (0.0009) | 14.92 (0.003) | ||
| BP magnitude | 14.67 (0.01) | |||
| RP magnitude | 15.21 (0.002) | |||
| Pan g magnitude | 14.74 (0.003) | |||
| Pan r magnitude | 15.18 (0.003) | |||
| Pan i magnitude | 15.55 (0.001) | |||
| Pan z magnitude | 15.83 (0.003) | |||
| Pan y magnitude | 16.01 (0.005) | |||
| E(B-V) | 0.062 | |||
* Constant surface field
Spectra without link are available upon request
The Montreal White Dwarf Database is produced and maintained by Prof. Patrick Dufour (Université de Montréal) and Dr. Simon Blouin (University of Victoria). Please send database updates, corrections, suggestions or bug reports to patrick.dufour@umontreal.ca.