All names: G 271-81, TIC 248983748, 2MASS J01302305-0447574, WT 1197, Gaia EDR3 2480731779699826176, NLTT 4995, WD 0127-050, Gaia DR2 2480731779699826176, WDJ013023.03-044757.82, EGGR 518, G271-81, GALEX J013022.9-044759, Gaia DR3 2480731779699826176
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | MWDD H | MWDD HE | Gaia DR2 | Stilism | Gianninas et al. 2011 | Koester et al. 2009 | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 01 30 22.80 (0.03) | 01 30 22.81 (0.06) | 01 30 22.80 | 01 30 23.03 (0.03) | 01 30 22.81 | 01 30 23.57 | |||||||
| Declination | -04 48 01.99 (0.02) | -04 48 01.86 (0.03) | -04 48 01.99 | -04 47 57.82 (0.02) | -04 48 01.86 | -04 47 56.40 | |||||||
| Spectral type | DA | DA | DA3.0 | DA | |||||||||
| Effective temperature | [K] | 16074.0 | 17820.0 | 16790.0 (250) | 16718.0 (23) | 16198.0 (141) | |||||||
| log(g) | [cgs] | 7.93 | 8.13 | 7.99 (0.04) | 7.78 (0.005) | 7.92 (0.008) | |||||||
| Mass | [M☉] | 0.575 | 0.672 | 0.61 (0.03) | 0.571 (0.006) | ||||||||
| log(Luminosity) | [L☉] | ||||||||||||
| Cooling age | [Gyr] | 0.1394 | 0.1447 | ||||||||||
| 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] | 16.93 (0.04) | 17.14 (0.06) | 16.93 | 16.93 (0.04) | 17.14 (0.06) | |||||||
| Distance | [pc] | 59.07 (0.1) | 58.33 (0.2) | 70.00 | 59.07 | 59.07 (0.1) | 58.33 (0.2) | ||||||
| Composition | H | ||||||||||||
| Proper motion (right ascension) | [mas/yr] | -212.3483616 (0.05) | -212.1291357 (0.1) | -212.348 (0.05) | -212.1291357 | ||||||||
| Proper motion (declination) | [mas/yr] | -260.7826869 (0.02) | -260.7185574 (0.06) | -260.783 (0.02) | -260.7185574 | ||||||||
| Variability | |||||||||||||
| Magnetic | |||||||||||||
| Bd | [MG] | ||||||||||||
| Infrared excess (disk) | |||||||||||||
| Binarity | |||||||||||||
| B magnitude | 15.30 | ||||||||||||
| V magnitude | 13.60 | ||||||||||||
| R magnitude | |||||||||||||
| I magnitude | |||||||||||||
| J magnitude | 15.27 (0.05) | ||||||||||||
| H magnitude | 15.34 (0.09) | ||||||||||||
| K magnitude | 15.31 (0.2) | ||||||||||||
| u magnitude | 14.97 (0.004) | ||||||||||||
| g magnitude | 14.76 (0.003) | ||||||||||||
| r magnitude | 15.05 (0.004) | ||||||||||||
| i magnitude | 15.35 (0.004) | ||||||||||||
| z magnitude | 15.61 (0.006) | ||||||||||||
| G magnitude | 14.91 (0.002) | 14.93 | 14.91 | 14.91 (0.003) | 14.93 | ||||||||
| BP magnitude | 14.86 (0.002) | 14.85 | 14.85 | ||||||||||
| RP magnitude | 15.04 (0.002) | 15.04 | 15.04 | ||||||||||
| Pan g magnitude | 14.77 (0.01) | ||||||||||||
| Pan r magnitude | 15.07 (0.005) | ||||||||||||
| Pan i magnitude | 15.36 (0.005) | ||||||||||||
| Pan z magnitude | 15.61 (0.003) | ||||||||||||
| Pan y magnitude | 15.76 (0.005) | ||||||||||||
| 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.