All names: SDSS J005457.60-002517.4, [MMN2004c] WD J0054-0025, SDSS J005457.60-002517.2, Gaia DR2 2536052294207084672, WD 0052-006, [HHD2009] SDSS J0054-0025, GALEX J005457.6-002517, SDSS J005457.61-002517.1, Gaia DR3 2536052294207084672, [SGR2010] J0054-0025, Gaia EDR3 2536052294207084672, WIRED J005457.61-002517.0, SDSS J005457.61-002517.0, 2SLAQ J005457.61-002517.1
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Gaia DR2 | Stilism | sdss-wdms.org (29/04/2016) | Tremblay et al. 2011 | Mukadam et al. 2004 | Simbad | Eisenstein et al. 2006 | White Dwarf Catalog (McCook & Sion 1999) | Kleinman et al. 2013 | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 00 54 57.60 (0.2) | 00 54 57.61 | 00 54 57.60 (0.3) | 00 54 57.61 | 00 54 57.62 (0.2) | 00 54 57.61 | 00 54 56.62 | 00 54 57.61 | ||||||
| Declination | -00 25 17.54 (0.09) | -00 25 17.23 | -00 25 17.53 (0.2) | -00 25 17.00 | -00 25 17.10 (0.09) | -00 25 17.15 | -00 25 14.88 | -00 25 17.07 | ||||||
| Spectral type | DA+M | DA | DA+M | DA+M | DA+M | DA+M | DA+MS | |||||||
| Effective temperature | [K] | 16653.0 (385) | 17410.0 (220) | 10100.0 (60) | 16417.0 (139) | 16237.0 (141) | ||||||||
| log(g) | [cgs] | 7.75 (0.09) | 7.86 (0.04) | 8.02 (0.07) | 7.57 (0.03) | 7.50 (0.03) | ||||||||
| Mass | [M☉] | 0.483 (0.04) | 0.54 (0.02) | |||||||||||
| log(Luminosity) | [L☉] | |||||||||||||
| Cooling age | [Gyr] | 0.0955 | ||||||||||||
| 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] | 2.40 (0.2) | 2.21 (0.3) | 2.40 (0.2) | ||||||||||
| Distance | [pc] | 416.50 (34) | 451.87 (61) | 396.00 (22) | 416.49 (34) | |||||||||
| Composition | H | |||||||||||||
| Proper motion (right ascension) | [mas/yr] | -20.92320994 (0.2) | -19.73827315 (0.6) | -20.923 (0.2) | -25.2 | |||||||||
| Proper motion (declination) | [mas/yr] | -27.52166673 (0.2) | -27.49886615 (0.3) | -27.522 (0.2) | -28.8 | |||||||||
| Variability | NOV | |||||||||||||
| Magnetic | ||||||||||||||
| Bd | [MG] | |||||||||||||
| Infrared excess (disk) | ||||||||||||||
| Binarity | WDMS | WDMS | WDMS | WDMS | ||||||||||
| B magnitude | ||||||||||||||
| V magnitude | ||||||||||||||
| R magnitude | ||||||||||||||
| I magnitude | ||||||||||||||
| J magnitude | 16.82 (0.02) | |||||||||||||
| H magnitude | 16.45 (0.03) | |||||||||||||
| K magnitude | 16.05 (0.03) | |||||||||||||
| u magnitude | 18.88 (0.02) | 18.84 | 18.87 (0.02) | 18.84 (0.03) | 18.87 | 18.87 (0.03) | ||||||||
| g magnitude | 18.58 (0.008) | 18.55 | 18.55 | 18.56 (0.008) | 18.55 (0.04) | 18.55 | 18.56 (0.04) | |||||||
| r magnitude | 18.80 (0.01) | 18.72 | 18.74 (0.01) | 18.72 (0.02) | 18.71 | 18.71 (0.02) | ||||||||
| i magnitude | 18.54 (0.01) | 18.46 | 18.48 (0.01) | 18.46 (0.02) | 18.46 | 18.44 (0.02) | ||||||||
| z magnitude | 18.06 (0.02) | 18.03 | 18.09 (0.02) | 18.03 (0.02) | 18.00 | 18.01 (0.02) | ||||||||
| G magnitude | 18.51 (0.02) | 18.53 | 18.51 (0.003) | |||||||||||
| BP magnitude | 18.72 (0.02) | 18.69 | ||||||||||||
| RP magnitude | 18.09 (0.02) | 18.09 | ||||||||||||
| Pan g magnitude | 18.61 (0.003) | |||||||||||||
| Pan r magnitude | 18.79 (0.004) | |||||||||||||
| Pan i magnitude | 18.56 (0.01) | |||||||||||||
| Pan z magnitude | 18.19 (0.02) | |||||||||||||
| Pan y magnitude | 17.94 (0.01) | |||||||||||||
| E(B-V) | 0.025 | |||||||||||||
* 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.