All names: LAMOST J121544.07+523100.4, WISEA J121543.99+523059.9, WD 1213+524, FB 90, V* EG UMa, LAMOST J121544.09+523101.3, WD 1213+52, SV* SVS 2817, GSC 03834-00241, USNO-B1.0 1425-00266727, 2XMM J121544.0+523100, Gaia DR3 1548104507825815296, 2MASS J12154411+5231013, CSI+52-12133, 1RXS J121544.9+523115, EGGR 87, AAVSO 1210+53, PM J12157+5231, USNO 532, UCAC4 713-051810, 12157+5231, Gaia EDR3 1548104507825815296, [GKL99] 254, UBV 11011, GJ 459.1, GALEX J121544.0+523100, WD 1213+528, GEN# +6.20020087, NAME Case 1, AP J12154411+5231013, TIC 416538823, SDSS J121544.07+523100.9, Case 1, SBSS 1213+528, uvby98 620020087, Gaia DR2 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.