All names: HS 1531+7436, WD 1531+746, Gaia DR2 1697790612080870144, GALEX J153034.9+742607, TIC 160395571, UCAC4 823-018930, WDJ153035.14+742606.96, Gaia DR3 1697790612080870144, Gaia EDR3 1697790612080870144, 2MASS J15303515+7426069
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | Gaia DR2 | Stilism | Gianninas et al. 2011 | Voss et al. 2006 | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 15 30 34.85 (0.04) | 15 30 34.85 (0.06) | 15 30 34.85 | 15 30 35.14 (0.04) | 15 30 34.85 | 15 30 34.87 | |||||
| Declination | 74 26 08.70 (0.04) | 74 26 08.65 (0.05) | 74 26 08.70 | 74 26 06.96 (0.04) | 74 26 08.65 | 74 25 59.16 | |||||
| Spectral type | DA | DA | DA3.8 | DAV3.9 | |||||||
| Effective temperature | [K] | 13370.0 (290) | 13270.0 | 12012.0 (148) | |||||||
| log(g) | [cgs] | 8.50 (0.06) | 8.49 | 8.34 (0.01) | |||||||
| Mass | [M☉] | 0.92 (0.04) | 0.818 (0.01) | ||||||||
| log(Luminosity) | [L☉] | ||||||||||
| Cooling age | [Gyr] | ||||||||||
| log(H/He) | |||||||||||
| log(C/He) | |||||||||||
| log(Ca/He) | |||||||||||
| log(Ca/H) | |||||||||||
| log(C/H) | |||||||||||
| log(N/H) | |||||||||||
| log(O/H) | |||||||||||
| log(Na/H) | |||||||||||
| log(Mg/H) | |||||||||||
| log(Al/H) | |||||||||||
| log(Si/H) | |||||||||||
| log(P/H) | |||||||||||
| log(S/H) | |||||||||||
| log(Sc/H) | |||||||||||
| log(Ti/H) | |||||||||||
| log(Cr/H) | |||||||||||
| log(Mn/H) | |||||||||||
| log(Fe/H) | |||||||||||
| log(Ni/H) | |||||||||||
| Parallax | [mas] | 13.45 (0.04) | 13.36 (0.06) | 13.45 | 13.45 (0.04) | 13.36 (0.06) | |||||
| Distance | [pc] | 74.37 (0.2) | 74.85 (0.3) | 62.00 | 74.37 | 74.37 (0.2) | 74.85 (0.3) | ||||
| Composition | H | ||||||||||
| Proper motion (right ascension) | [mas/yr] | -73.66981845 (0.05) | -73.52562102 (0.1) | -73.67 (0.06) | -73.52562102 | ||||||
| Proper motion (declination) | [mas/yr] | 108.7920489 (0.04) | 108.616448 (0.1) | 108.792 (0.04) | 108.616448 | ||||||
| Variability | VAR | VAR | VAR | ||||||||
| Magnetic | |||||||||||
| Bd | [MG] | ||||||||||
| Infrared excess (disk) | |||||||||||
| Binarity | |||||||||||
| B magnitude | 16.57 (0.06) | ||||||||||
| V magnitude | 16.40 | 16.36 (0.01) | |||||||||
| R magnitude | |||||||||||
| I magnitude | |||||||||||
| J magnitude | 16.58 (0.1) | ||||||||||
| H magnitude | |||||||||||
| K magnitude | |||||||||||
| u magnitude | |||||||||||
| g magnitude | 16.51 (0.01) | ||||||||||
| r magnitude | 16.46 (0.01) | ||||||||||
| i magnitude | |||||||||||
| z magnitude | |||||||||||
| G magnitude | 16.54 (0.005) | 16.57 | 16.54 | 16.54 (0.003) | 16.57 | ||||||
| BP magnitude | 16.56 (0.005) | 16.54 | 16.54 | ||||||||
| RP magnitude | 16.57 (0.006) | 16.58 | 16.58 | ||||||||
| Pan g magnitude | 16.48 (0.003) | ||||||||||
| Pan r magnitude | 16.65 (0.002) | ||||||||||
| Pan i magnitude | 16.87 (0.003) | ||||||||||
| Pan z magnitude | 17.09 (0.004) | ||||||||||
| Pan y magnitude | 17.25 (0.005) | ||||||||||
| E(B-V) | 0.008 | ||||||||||
| Period #1 | [s] | 112.5 | |||||||||
| Amplitude #1 | [mma] | 4.2 | |||||||||
* 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.