All names: LTT 235, [SRH2004] A12, WD 0024-55, WD 0024-556, USNO-B1.0 0345-00003508, USNO-B1.0 0345-00003501, L 170-27, CNS5 129, GEN# +9.86170027, Gaia DR2 4920057871348614272, LFT 44, EC 00243-5541, TIC 281541729, GSC 08468-00316, BPM 16115, LAWD 4, NLTT 1415, WDJ002640.74-552444.12, LEHPM 595, LHS 1076, WD0024-556, uvby98 600100235, Gaia DR3 4920057871348614272, WG 42, 2MASS J00264070-5524440, Gaia EDR3 4920057871348614272
| Parameter | Unit | Gaia EDR3 | O'Brien et al. 2024 | Gaia DR2 | Stilism | 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 | 00 26 40.17 (0.02) | 00 26 40.19 (0.02) | 00 26 40.69 | 00 26 41.10 | 00 26 40.17 | 00 26 40.74 (0.02) | 00 26 40.19 | 00 26 39.96 | |||||
| Declination | -55 24 51.37 (0.02) | -55 24 51.14 (0.02) | -55 24 44.10 | -55 24 45.00 | -55 24 51.37 | -55 24 44.12 (0.02) | -55 24 51.14 | -55 24 59.76 | |||||
| Spectral type | DA | DA | DA5.0 | DA | DA | DA5.0 | DA5 | ||||||
| Effective temperature | [K] | 9935.0 (99) | 10070.0 (145) | 10157.0 (7) | 10007.0 (378) | 10186.0 (15) | 10058.0 (44) | ||||||
| log(g) | [cgs] | 8.65 (0.02) | 8.92 (0.05) | 8.74 (0.006) | 8.69 (0.02) | 8.66 (0.006) | |||||||
| Mass | [M☉] | 1.013 (0.01) | 1.16 (0.02) | 1.04 | 1.022 (0.005) | ||||||||
| log(Luminosity) | [L☉] | ||||||||||||
| Cooling age | [Gyr] | ||||||||||||
| 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] | 41.57 (0.02) | 41.57 (0.02) | 41.55 (0.03) | 41.57 | 41.57 (0.02) | 41.55 (0.03) | ||||||
| Distance | [pc] | 24.05 (0.01) | 24.06 (0.01) | 24.07 (0.02) | 19.00 | 39.80 | 24.05 | 24.05 (0.01) | 24.07 (0.02) | ||||
| Composition | H | H | |||||||||||
| Proper motion (right ascension) | [mas/yr] | -298.8743734 (0.02) | -298.9184408 (0.04) | -298.874 (0.02) | -298.9184408 | ||||||||
| Proper motion (declination) | [mas/yr] | -452.7062155 (0.03) | -452.7126449 (0.04) | -452.706 (0.03) | -452.7126449 | ||||||||
| Variability | |||||||||||||
| Magnetic | |||||||||||||
| Bd | [MG] | ||||||||||||
| Infrared excess (disk) | |||||||||||||
| Binarity | |||||||||||||
| B magnitude | 15.31 | ||||||||||||
| V magnitude | 15.21 | 15.21 | 15.14 | ||||||||||
| R magnitude | 15.15 | ||||||||||||
| I magnitude | 15.07 | ||||||||||||
| J magnitude | 15.01 (0.04) | 15.01 (0.04) | |||||||||||
| H magnitude | 15.23 (0.1) | 15.23 (0.1) | |||||||||||
| K magnitude | 15.09 (0.1) | 15.09 (0.1) | |||||||||||
| u magnitude | |||||||||||||
| g magnitude | |||||||||||||
| r magnitude | |||||||||||||
| i magnitude | |||||||||||||
| z magnitude | |||||||||||||
| G magnitude | 15.16 (0.001) | 15.18 | 15.16 | 15.16 (0.003) | 15.18 | ||||||||
| BP magnitude | 15.22 (0.001) | 15.21 | 15.21 | ||||||||||
| RP magnitude | 15.06 (0.002) | 15.07 | 15.07 | ||||||||||
| 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.