All names: SBSS 1213+528, USNO 532, V* EG UMa, 1RXS J121544.9+523115, SDSS J121544.07+523100.9, PM J12157+5231, Case 1, WD 1213+524, UCAC4 713-051810, GALEX J121544.0+523100, EGGR 87, 2XMM J121544.0+523100, FB 90, Gaia DR2 1548104507825815296, 12157+5231, LAMOST J121544.07+523100.4, UBV 11011, GSC 03834-00241, GEN# +6.20020087, 2MASS J12154411+5231013, GJ 459.1, Gaia EDR3 1548104507825815296, WD 1213+528, TIC 416538823, AAVSO 1210+53, USNO-B1.0 1425-00266727, LAMOST J121544.09+523101.3, [GKL99] 254, AP J12154411+5231013, WD 1213+52, NAME Case 1, SV* SVS 2817, CSI+52-12133, WISEA J121543.99+523059.9, uvby98 620020087, Gaia DR3 1548104507825815296
| Parameter | Unit | Gaia EDR3 | Gaia DR2 | Stilism | Limoges et al. 2015 | Gianninas et al. 2011 | Zuckerman et al. 2003 | Simbad | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 12 15 43.94 (0.01) | 12 15 43.94 (0.02) | 12 15 44.10 (0.01) | 12 15 46.20 | |||||
| Declination | 52 30 59.18 (0.01) | 52 30 59.24 (0.02) | 52 31 01.29 (0.01) | 52 31 19.92 | |||||
| Spectral type | DA+dM | DA | DA+dM | DA4 | |||||
| Effective temperature | [K] | 18840.0 (446) | 15450.0 (356) | 13000.0 | |||||
| log(g) | [cgs] | 8.30 (0.07) | 8.07 (0.06) | 8.14 | |||||
| Mass | [M☉] | 0.8 (0.05) | 0.66 (0.04) | ||||||
| log(Luminosity) | [L☉] | -1.90 | |||||||
| Cooling age | [Gyr] | ||||||||
| log(H/He) | |||||||||
| log(C/He) | |||||||||
| log(Ca/He) | |||||||||
| log(Ca/H) | -8.105 | ||||||||
| 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] | 34.95 (0.02) | 34.83 (0.03) | 26.80 (3) | 34.95 (0.02) | 25.90 | |||
| Distance | [pc] | 28.61 (0.02) | 28.71 (0.03) | 37.30 (4) | 25.00 | 28.61 (0.02) | 38.61 | ||
| Composition | H | H | |||||||
| Proper motion (right ascension) | [mas/yr] | -90.42202973 (0.02) | -90.473 (0.04) | -90.422 (0.02) | |||||
| Proper motion (declination) | [mas/yr] | -131.9403318 (0.02) | -132.013 (0.05) | -131.94 (0.02) | |||||
| Variability | NOV | ||||||||
| Magnetic | |||||||||
| Bd | [MG] | ||||||||
| Infrared excess (disk) | |||||||||
| Binarity | WDMS | WDMS | |||||||
| B magnitude | 13.00 | ||||||||
| V magnitude | 13.23 (0.05) | ||||||||
| R magnitude | 13.15 (0.05) | ||||||||
| I magnitude | |||||||||
| J magnitude | 9.99 | 9.98 (0.02) | |||||||
| H magnitude | 9.36 | 9.34 (0.03) | |||||||
| K magnitude | 9.09 | 9.03 (0.02) | |||||||
| u magnitude | 14.76 (0.006) | ||||||||
| g magnitude | 13.68 (0.003) | ||||||||
| r magnitude | 13.13 (0.002) | ||||||||
| i magnitude | 12.17 (0.001) | ||||||||
| z magnitude | 11.65 (0.005) | ||||||||
| G magnitude | 12.57 (0.002) | 12.58 | 12.57 (0.003) | ||||||
| BP magnitude | 13.40 (0.002) | 13.41 | |||||||
| RP magnitude | 11.59 (0.001) | 11.61 | |||||||
| 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.