All names: Gaia DR3 5180428650076113152, WD 0253-077, Gaia DR2 5180428650076113152, PB 9375, GALEX J025610.5-073023, SDSS J025610.61-073024.6, [HHD2009] SDSS J0256-0730, [SGR2010] J0256-0730, WIRED J025610.61-073024.6, 2MASS J02561060-0730246, Gaia EDR3 5180428650076113152, TIC 425138314, SDSS J025610.60-073024.5
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Gaia DR2 | Stilism | sdss-wdms.org (29/04/2016) | Tremblay et al. 2011 | Simbad | Eisenstein et al. 2006 | White Dwarf Catalog (McCook & Sion 1999) | Kleinman et al. 2013 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 02 56 10.63 (0.6) | 02 56 10.61 | 02 56 10.63 (0.8) | 02 56 10.61 | 02 56 10.60 (0.6) | 02 56 10.61 | 02 56 09.58 | 02 56 10.61 | ||||
| Declination | -07 30 25.03 (0.6) | -07 30 24.55 | -07 30 25.03 (0.8) | -07 30 24.59 | -07 30 24.61 (0.6) | -07 30 24.55 | -07 30 19.80 | -07 30 24.61 | ||||
| Spectral type | DA+M | DA | DA+M | DA+M | DA5+M | DA+M | ||||||
| Effective temperature | [K] | 15422.0 (180) | 16490.0 (260) | 16563.0 (109) | 16557.0 (114) | |||||||
| log(g) | [cgs] | 7.80 (0.04) | 8.01 (0.04) | 7.69 (0.02) | 7.63 (0.03) | |||||||
| Mass | [M☉] | 0.5 (0.02) | 0.62 (0.03) | |||||||||
| log(Luminosity) | [L☉] | |||||||||||
| Cooling age | [Gyr] | 0.1549 | ||||||||||
| 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] | 8.78 (0.7) | 8.78 (0.7) | |||||||||
| Distance | [pc] | 113.84 (1e+01) | 922.00 (315) | 113.84 (1e+01) | ||||||||
| Composition | H | |||||||||||
| Proper motion (right ascension) | [mas/yr] | 22.951 (0.7) | 22.951 (0.7) | 18.9 | ||||||||
| Proper motion (declination) | [mas/yr] | -26.632 (0.8) | -26.632 (0.8) | -28.0 | ||||||||
| Variability | ||||||||||||
| Magnetic | ||||||||||||
| Bd | [MG] | |||||||||||
| Infrared excess (disk) | ||||||||||||
| Binarity | WDMS | WDMS | WDMS | |||||||||
| B magnitude | 17.00 | |||||||||||
| V magnitude | ||||||||||||
| R magnitude | ||||||||||||
| I magnitude | ||||||||||||
| J magnitude | 14.26 (0.03) | |||||||||||
| H magnitude | 13.78 (0.02) | |||||||||||
| K magnitude | 13.48 (0.04) | |||||||||||
| u magnitude | 17.29 (0.009) | 17.25 | 17.29 (0.009) | 17.25 (0.04) | 17.24 | 17.27 (0.04) | ||||||
| g magnitude | 16.85 (0.004) | 16.81 | 16.87 (0.004) | 16.81 (0.03) | 16.80 | 16.83 (0.03) | ||||||
| r magnitude | 16.84 (0.004) | 16.85 | 16.85 (0.004) | 16.85 (0.03) | 16.86 | 16.87 (0.03) | ||||||
| i magnitude | 16.27 (0.004) | 16.25 | 16.28 (0.004) | 16.25 (0.01) | 16.25 | 16.28 (0.02) | ||||||
| z magnitude | 15.64 (0.007) | 15.64 | 15.64 (0.007) | 15.64 (0.02) | 15.65 | 15.64 (0.02) | ||||||
| G magnitude | 16.81 (0.02) | 16.60 | 16.81 (0.02) | |||||||||
| BP magnitude | 16.90 (0.008) | 16.89 | ||||||||||
| RP magnitude | 15.81 (0.006) | 15.82 | ||||||||||
| Pan g magnitude | 16.83 (0.003) | |||||||||||
| Pan r magnitude | 16.85 (0.004) | |||||||||||
| Pan i magnitude | 16.30 (0.006) | |||||||||||
| Pan z magnitude | 15.82 (0.005) | |||||||||||
| Pan y magnitude | 15.50 (0.003) | |||||||||||
| E(B-V) | 0.027 | |||||||||||
* 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.