All names: Gaia DR2 4686800224727589248, Gaia EDR3 4686800224727589248, SCR 0150-7207, TIC 304102073, WD 0149-723, 015038.47-720716.54, Gaia DR3 4686800224727589248, 2MASS J01503855-7207164, WDJ015038.47-720716.54, SCR J0150-7207
| Parameter | Unit | Gaia EDR3 | O'Brien et al. 2024 | O'Brien et al. 2022 | Gaia DR2 | Stilism | Subasavage et al. 2008 | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 01 50 37.67 (0.03) | 01 50 37.70 (0.04) | 01 50 38.49 | 01 50 37.67 | 01 50 38.47 (0.03) | 01 50 37.70 | 01 50 38.26 | ||||
| Declination | -72 07 20.27 (0.03) | -72 07 20.16 (0.04) | -72 07 16.70 | -72 07 20.27 | -72 07 16.54 (0.03) | -72 07 20.16 | -72 07 10.92 | ||||
| Spectral type | DC | DC | DC | DC | DC | DC7.2 | |||||
| Effective temperature | [K] | 6838.0 (62) | 6840.0 (60) | 6972.0 (298) | 6350.0 (43) | ||||||
| log(g) | [cgs] | 8.13 (0.03) | 8.13 (0.03) | 7.96 (0.01) | |||||||
| Mass | [M☉] | 0.656 (0.02) | 0.55 (0.009) | ||||||||
| log(Luminosity) | [L☉] | ||||||||||
| Cooling age | [Gyr] | ||||||||||
| log(H/He) | |||||||||||
| log(C/He) | |||||||||||
| log(Ca/He) | |||||||||||
| log(Ca/H) | |||||||||||
| log(N/He) | |||||||||||
| log(O/He) | |||||||||||
| log(Na/He) | |||||||||||
| log(Mg/He) | |||||||||||
| log(Al/He) | |||||||||||
| log(Si/He) | |||||||||||
| log(P/He) | |||||||||||
| log(S/He) | |||||||||||
| log(Cl/He) | |||||||||||
| log(Sc/He) | |||||||||||
| log(Ti/He) | |||||||||||
| log(V/He) | |||||||||||
| log(Cr/He) | |||||||||||
| log(Mn/He) | |||||||||||
| log(Fe/He) | |||||||||||
| log(Co/He) | |||||||||||
| log(Ni/He) | |||||||||||
| log(Cu/He) | |||||||||||
| log(Zn/He) | |||||||||||
| log(Ga/He) | |||||||||||
| log(Ge/He) | |||||||||||
| log(Sr/He) | |||||||||||
| Parallax | [mas] | 31.53 (0.04) | 31.53 (0.04) | 31.53 (0.04) | 31.54 (0.04) | 31.53 | 31.53 (0.04) | 31.54 (0.04) | 27.60 | ||
| Distance | [pc] | 31.72 (0.04) | 31.72 (0.04) | 31.72 (0.04) | 31.70 (0.04) | 36.20 | 31.72 | 31.72 (0.04) | 31.70 (0.04) | 36.23 | |
| Composition | He | ||||||||||
| Proper motion (right ascension) | [mas/yr] | -229.3575895 (0.05) | -229.3685254 (0.1) | -229.358 (0.05) | -229.3685254 | ||||||
| Proper motion (declination) | [mas/yr] | -232.9983541 (0.04) | -233.0123269 (0.07) | -232.998 (0.04) | -233.0123269 | ||||||
| Variability | |||||||||||
| Magnetic | |||||||||||
| Bd | [MG] | ||||||||||
| Infrared excess (disk) | |||||||||||
| Binarity | |||||||||||
| B magnitude | 16.19 | ||||||||||
| V magnitude | |||||||||||
| R magnitude | 15.72 | ||||||||||
| I magnitude | 15.24 | ||||||||||
| J magnitude | 15.65 (0.05) | 15.65 (0.05) | |||||||||
| H magnitude | 15.64 (0.1) | 15.64 (0.1) | |||||||||
| K magnitude | 15.42 (0.2) | 15.42 (0.2) | |||||||||
| u magnitude | |||||||||||
| g magnitude | |||||||||||
| r magnitude | |||||||||||
| i magnitude | |||||||||||
| z magnitude | |||||||||||
| G magnitude | 16.23 (0.004) | 16.25 | 16.23 | 16.23 (0.003) | 16.25 | ||||||
| BP magnitude | 16.43 (0.004) | 16.44 | 16.44 | ||||||||
| RP magnitude | 15.90 (0.003) | 15.91 | 15.91 | ||||||||
| Pan g magnitude | |||||||||||
| Pan r magnitude | |||||||||||
| Pan i magnitude | |||||||||||
| Pan z magnitude | |||||||||||
| Pan y magnitude | |||||||||||
| E(B-V) | 0.001 | ||||||||||
* 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.