All names: UBV M 42730, GEN# +9.80231043, Gaia DR2 2177776331525931136, NLTT 51286, G 232-14, Lan 082, 21264+5513, Lan 82, GJ 828.3, CSI+55-21249, WD 2124+550, KPD 2124+5459, Ross 198, UBV M 43027, LSPM J2126+5513, Gaia EDR3 2177776331525931136, 2MASS J21262546+5513324, WD 2124+55, CSI+54-21247, TIC 316271332, GJ 9741, LAWD 85, USNO-B1.0 1452-00354740, PLX 5166.01, WDJ212625.46+551332.38, USNO 266, G 231-43, PM J21264+5513, uvby98 980231043, Gaia DR3 2177776331525931136, EGGR 143, LTT 16270, UBV 18501, UBV 18243
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | O'Brien et al. 2024 | McCleery et al. 2020 | MWDD H | Gaia DR2 | Bedard et al. 2017 | Stilism | Limoges et al. 2015 | Gianninas et al. 2011 | Lepine et al. 2011 | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 21 26 25.96 (0.02) | 21 26 25.95 (0.03) | 21 26 25.95 (0.03) | 21 26 25.96 | 21 26 25.46 (0.02) | 21 26 25.95 | 21 26 24.00 | |||||||||
| Declination | 55 13 35.42 (0.02) | 55 13 35.33 (0.03) | 55 13 35.33 (0.03) | 55 13 35.42 | 55 13 32.38 (0.02) | 55 13 35.33 | 55 13 27.12 | |||||||||
| Spectral type | DA | DA | DA | DA | DA | DA | DA3.5 | DA | DA3.6 | DA4 | ||||||
| Effective temperature | [K] | 13073.0 (200) | 12798.1 (81) | 13015.0 | 14620.0 (383) | 13920.0 (271) | 14040.0 (253) | 14800.0 (387) | 13662.0 (99) | |||||||
| log(g) | [cgs] | 8.37 (0.01) | 8.37 (0.008) | 8.39 | 8.48 (0.05) | 8.53 (0.05) | 8.41 (0.05) | 8.46 (0.05) | 8.40 (0.005) | |||||||
| Mass | [M☉] | 0.84 (0.009) | 0.85 | 0.85 (0.3) | 0.94 (0.03) | 0.87 (0.03) | 0.9 (0.03) | 0.863 (0.004) | ||||||||
| log(Luminosity) | [L☉] | -2.59 | ||||||||||||||
| Cooling age | [Gyr] | 0.5401 | 0.4270 | |||||||||||||
| 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] | 29.66 (0.02) | 29.66 (0.02) | 29.78 (0.03) | 29.78 (0.03) | 27.80 (3) | 29.66 | 29.66 (0.02) | 29.78 (0.03) | 29.00 (4) | ||||||
| Distance | [pc] | 33.72 (0.03) | 33.72 (0.02) | 33.58 (0.04) | 33.58 (0.04) | 33.20 (5) | 36.00 (4) | 35.00 | 47.00 | 33.72 | 33.72 (0.03) | 33.58 (0.04) | 34.48 (5) | |||
| Composition | H | H | H | H | ||||||||||||
| Proper motion (right ascension) | [mas/yr] | 272.2023352 (0.03) | 271.8220147 (0.07) | 272.202 (0.03) | 271.8220147 | |||||||||||
| Proper motion (declination) | [mas/yr] | 189.8879501 (0.03) | 190.1835819 (0.06) | 189.888 (0.03) | 190.1835819 | |||||||||||
| Variability | NOV | |||||||||||||||
| Magnetic | ||||||||||||||||
| Bd | [MG] | |||||||||||||||
| Infrared excess (disk) | ||||||||||||||||
| Binarity | ||||||||||||||||
| B magnitude | 14.88 | |||||||||||||||
| V magnitude | 14.75 | |||||||||||||||
| R magnitude | 15.00 | |||||||||||||||
| I magnitude | 14.80 | |||||||||||||||
| J magnitude | 14.99 (0.05) | |||||||||||||||
| H magnitude | 14.96 (0.09) | |||||||||||||||
| K magnitude | 14.90 (0.2) | |||||||||||||||
| u magnitude | ||||||||||||||||
| g magnitude | ||||||||||||||||
| r magnitude | ||||||||||||||||
| i magnitude | ||||||||||||||||
| z magnitude | ||||||||||||||||
| G magnitude | 14.76 (0.0009) | 14.77 | 14.77 | 14.76 | 14.76 (0.003) | 14.77 | ||||||||||
| BP magnitude | 14.74 (0.0009) | 14.73 | 14.73 | |||||||||||||
| RP magnitude | 14.79 (0.002) | 14.80 | 14.80 | |||||||||||||
| Pan g magnitude | 14.68 (0.003) | |||||||||||||||
| Pan r magnitude | 14.88 (0.0008) | |||||||||||||||
| Pan i magnitude | 15.12 (0.002) | |||||||||||||||
| Pan z magnitude | 15.34 (0.004) | |||||||||||||||
| Pan y magnitude | 15.49 (0.003) | |||||||||||||||
| E(B-V) | 0.002 | |||||||||||||||
* 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.