All names: Gaia DR3 5491580506476906752, UCAC2 8191949, WISEA J071549.67-540756.6, 2MASS J07154968-5407566, TIC 294394152, Gaia DR2 5491580506476906752, Gaia EDR3 5491583427054850944, GALEXJ07158-5407, DENIS J071549.7-540756, GALEX J071549.6-540755, WISE J071549.67-540756.8, UCAC4 180-010982
| Parameter | Unit | Gaia EDR3 | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|---|
| Right ascension | 07 15 38.41 (0.5) | 07 15 49.64 | 07 15 49.70 (0.02) | ||
| Declination | -54 08 00.88 (0.5) | -54 07 55.48 | -54 07 56.62 (0.02) | ||
| Spectral type | He-sdO | sdO3VIIHe40 | |||
| Effective temperature | [K] | ||||
| log(g) | [cgs] | ||||
| Mass | [M☉] | ||||
| log(Luminosity) | [L☉] | ||||
| Cooling age | [Gyr] | ||||
| log(H/He) | |||||
| log(C/He) | |||||
| log(Ca/He) | |||||
| log(Ca/H) | |||||
| Parallax | [mas] | 1.66 (0.5) | 0.69 (0.03) | 0.73 (0.03) | |
| Distance | [pc] | 602.12 (187) | 1448.23 (70) | 1363.33 (47) | |
| Composition | |||||
| Proper motion (right ascension) | [mas/yr] | -2.58 (0.6) | 0.814 (0.08) | 1.051 (0.03) | |
| Proper motion (declination) | [mas/yr] | 6.532 (0.6) | 12.963 (0.07) | 12.886 (0.03) | |
| Variability | |||||
| Magnetic | |||||
| Bd | [MG] | ||||
| Infrared excess (disk) | |||||
| Binarity | |||||
| B magnitude | 14.21 (0.07) | ||||
| V magnitude | 14.38 (0.02) | ||||
| R magnitude | 14.62 (0.08) | ||||
| I magnitude | 14.54 (0.03) | ||||
| J magnitude | 14.93 (0.05) | 14.93 (0.05) | |||
| H magnitude | 14.95 (0.07) | 14.95 (0.07) | |||
| K magnitude | 15.06 (0.1) | 15.06 (0.1) | |||
| u magnitude | |||||
| g magnitude | 14.20 (0.03) | ||||
| r magnitude | 14.57 (0.06) | ||||
| i magnitude | 14.88 (0.06) | ||||
| z magnitude | |||||
| G magnitude | 20.43 (0.007) | 14.36 (0.0007) | 14.34 (0.003) | ||
| BP magnitude | 20.58 (0.1) | 14.14 (0.008) | |||
| RP magnitude | 19.75 (0.08) | 14.57 (0.002) | |||
| Pan g magnitude | |||||
| Pan r magnitude | |||||
| Pan i magnitude | |||||
| Pan z magnitude | |||||
| Pan y magnitude | |||||
| E(B-V) | 0.092 | ||||
* 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.