All names: WDJ025617.22-702210.85, Gaia EDR3 4645960583300470656, NLTT 9485, GSC 09148-01755, WG 6, L 54-5, GJ 2028, uvby98 600101419, WD 0255-705, GEN# +9.86054005, LTT 1419, BPM 2819, DENIS J025617.0-702210, LHS 1474, LAWD 13, WISEA J025618.59-702212.0, GSC2 S0133033135, LFT 245, GSC2 S0133033136, TIC 260002014, 2MASS J02561721-7022108, GCRV 26220, EC 02558-7034, GCRV 27422, Gaia DR3 4645960583300470656, Gaia DR2 4645960583300470656, WD0255-705, WD 0255-70, GSC 09148-01173
| Parameter | Unit | Gaia EDR3 | O'Brien et al. 2024 | Gaia DR2 | Bedard et al. 2017 | Subasavage et al. 2017 | Stilism | Sion et al. 2014 | Giammichele et al. 2012 | Gianninas et al. 2011 | Koester et al. 2009 | Subasavage et al. 2007 | Koester et al. 2001 | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 02 56 19.30 (0.01) | 02 56 19.23 (0.02) | 02 56 17.22 | 02 56 17.04 | 02 56 17.22 | 02 56 16.90 | 02 56 19.30 | 02 56 17.22 (0.01) | 02 56 19.23 | 02 56 10.90 | |||||||
| Declination | -70 22 12.65 (0.01) | -70 22 12.59 (0.02) | -70 22 01.09 | -70 22 08.40 | -70 22 10.80 | -70 22 18.00 | -70 22 12.65 | -70 22 10.85 (0.01) | -70 22 12.59 | -70 21 58.68 | |||||||
| Spectral type | DA | DA | DA | DAZ4.7 | DA | DA | DA5.0 | DA | DA | DA4.7 | DA6 | ||||||
| Effective temperature | [K] | 10339.0 (90) | 10743.0 (167) | 10480.0 (320) | 10560.0 | 10769.0 (159) | 10770.0 (159) | 10514.0 (8) | 10541.0 (326) | 10484.0 (9) | 10436.0 (33) | ||||||
| log(g) | [cgs] | 8.00 (0.02) | 8.07 (0.06) | 8.10 (0.07) | 7.95 (0.05) | 8.23 (0.05) | 8.08 (0.006) | 8.07 (0.01) | 8.02 (0.005) | ||||||||
| Mass | [M☉] | 0.602 (0.01) | 0.58 (0.1) | 0.66 (0.06) | 0.57 (0.03) | 0.75 (0.03) | 0.65 | 0.611 (0.004) | |||||||||
| log(Luminosity) | [L☉] | -2.81 (0.08) | -2.67 | ||||||||||||||
| Cooling age | [Gyr] | 0.6100 (0.08) | 0.4700 | ||||||||||||||
| 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] | 39.63 (0.01) | 39.63 (0.01) | 39.71 (0.02) | 41.55 (2) | 39.63 | 39.63 (0.01) | 39.71 (0.02) | |||||||||
| Distance | [pc] | 25.23 (0.009) | 25.23 (0.006) | 25.18 (0.01) | 24.10 (1) | 24.07 (1) | 21.00 | 27.80 (1) | 23.00 | 25.80 | 25.23 | 25.23 (0.009) | 25.18 (0.01) | ||||
| Composition | H | H | H | H | |||||||||||||
| Proper motion (right ascension) | [mas/yr] | 654.3681407 (0.02) | 654.4822312 (0.04) | 654.368 (0.02) | 654.4822312 | ||||||||||||
| Proper motion (declination) | [mas/yr] | -112.4745233 (0.02) | -112.3747778 (0.04) | -112.475 (0.02) | -112.3747778 | ||||||||||||
| Variability | NOV | ||||||||||||||||
| Magnetic | |||||||||||||||||
| Bd | [MG] | ||||||||||||||||
| Infrared excess (disk) | |||||||||||||||||
| Binarity | |||||||||||||||||
| B magnitude | 14.25 | ||||||||||||||||
| V magnitude | 14.07 | 14.08 | 14.08 | 14.08 | 14.07 | ||||||||||||
| R magnitude | 14.04 | 14.03 | |||||||||||||||
| I magnitude | 13.99 | 14.00 | |||||||||||||||
| J magnitude | 14.04 (0.03) | 14.04 (0.03) | 14.04 (0.03) | ||||||||||||||
| H magnitude | 14.12 (0.04) | 14.12 (0.04) | 14.12 (0.04) | ||||||||||||||
| K magnitude | 13.99 (0.06) | 13.99 (0.06) | 13.99 (0.06) | ||||||||||||||
| u magnitude | |||||||||||||||||
| g magnitude | |||||||||||||||||
| r magnitude | |||||||||||||||||
| i magnitude | |||||||||||||||||
| z magnitude | |||||||||||||||||
| G magnitude | 14.07 (0.001) | 14.09 | 14.07 | 14.07 (0.003) | 14.09 | ||||||||||||
| BP magnitude | 14.12 (0.001) | 14.11 | 14.11 | ||||||||||||||
| RP magnitude | 14.01 (0.001) | 14.02 | 14.02 | ||||||||||||||
| 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.