All names: Gaia DR2 6185229686265709312, WD 1252-289, Gaia DR3 6185229686265709312, WISE J125455.09-291152.9, USNO-B1.0 0608-00285703, EC 12522-2855, TIC 424258218, 2MASS J12545511-2911536, Gaia EDR3 6185229686265709312, WISEA J125455.09-291153.4
| Parameter | Unit | Gaia EDR3 | Gaia DR2 | Stilism | Bergeron et al. 2011 | Voss et al. 2007 | Vincent et al. 2024 | Simbad | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 12 54 55.04 (0.05) | 12 54 55.04 (0.08) | 12 54 55.04 | 12 54 55.16 (0.05) | 12 54 54.36 | ||||
| Declination | -29 11 53.36 (0.03) | -29 11 53.37 (0.05) | -29 11 53.36 | -29 11 53.67 (0.03) | -29 11 51.00 | ||||
| Spectral type | DB | DB | DB | DB | |||||
| Effective temperature | [K] | 21880.0 (757) | 21029.0 | 20212.0 (362) | |||||
| log(g) | [cgs] | 8.03 (0.06) | 7.97 | 8.02 (0.01) | |||||
| Mass | [M☉] | 0.62 (0.03) | 0.595 | 0.612 (0.01) | |||||
| log(Luminosity) | [L☉] | -1.49 | |||||||
| Cooling age | [Gyr] | 0.0550 | |||||||
| log(H/He) | <-4.85 (1) | ||||||||
| log(C/He) | |||||||||
| log(Ca/He) | |||||||||
| log(Ca/H) | |||||||||
| log(N/He) | |||||||||
| log(O/He) | |||||||||
| log(Na/He) | |||||||||
| log(Mg/He) | |||||||||
| log(Al/He) | |||||||||
| log(Si/He) | |||||||||
| log(P/He) | |||||||||
| log(S/He) | |||||||||
| log(Cl/He) | |||||||||
| log(Sc/He) | |||||||||
| log(Ti/He) | |||||||||
| log(V/He) | |||||||||
| log(Cr/He) | |||||||||
| log(Mn/He) | |||||||||
| log(Fe/He) | |||||||||
| log(Co/He) | |||||||||
| log(Ni/He) | |||||||||
| log(Cu/He) | |||||||||
| log(Zn/He) | |||||||||
| log(Ga/He) | |||||||||
| log(Ge/He) | |||||||||
| log(Sr/He) | |||||||||
| Parallax | [mas] | 9.10 (0.05) | 9.14 (0.08) | 9.10 | 9.10 (0.05) | ||||
| Distance | [pc] | 109.91 (0.7) | 109.46 (1) | 112.00 | 109.91 | 109.91 (0.7) | |||
| Composition | He | ||||||||
| Proper motion (right ascension) | [mas/yr] | -94.23697929 (0.05) | -94.1512953 (0.2) | -94.237 (0.05) | |||||
| Proper motion (declination) | [mas/yr] | 19.89173912 (0.03) | 20.10064514 (0.1) | 19.892 (0.04) | |||||
| Variability | |||||||||
| Magnetic | |||||||||
| Bd | [MG] | ||||||||
| Infrared excess (disk) | |||||||||
| Binarity | |||||||||
| B magnitude | 15.82 (0.3) | ||||||||
| V magnitude | 15.85 | 15.85 | 15.85 | ||||||
| R magnitude | 15.90 | ||||||||
| I magnitude | |||||||||
| J magnitude | 16.41 (0.1) | ||||||||
| H magnitude | 16.22 (0.2) | ||||||||
| K magnitude | |||||||||
| u magnitude | |||||||||
| g magnitude | |||||||||
| r magnitude | |||||||||
| i magnitude | |||||||||
| z magnitude | |||||||||
| G magnitude | 15.87 (0.003) | 15.89 | 15.87 | 15.87 (0.003) | |||||
| BP magnitude | 15.79 (0.003) | 15.76 | |||||||
| RP magnitude | 16.03 (0.004) | 16.04 | |||||||
| Pan g magnitude | |||||||||
| Pan r magnitude | |||||||||
| Pan i magnitude | |||||||||
| Pan z magnitude | |||||||||
| Pan y magnitude | |||||||||
| E(B-V) | 0.015 | ||||||||
* 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.