All names: WDJ023919.69+260957.46, GALEX J023919.8+260955, TIC 22943978, LSPM J0239+2609, Gaia EDR3 126342377182577408, 2MASS J02391962+2609579, NLTT 8581, G36-29, PM J02393+2609, Gaia DR3 126342377182577408, J0239+2609, WISEA J023919.93+260955.7, PSO J039.8332+26.1653, SDSS J023919.83+260956.5, Gaia DR2 126342377182577408, SDSS J023919.82+260956.4, CNS5 669, USNO-B1.0 1161-00031896, G 36-29, 02393+2609, WD 0236+259
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | Kilic et al. 2025 | O'Brien et al. 2024 | Caron et al. 2023 | Kilic et al. 2020 | McCleery et al. 2020 | Blouin et al. 2019 | Gaia DR2 | Subasavage et al. 2017 | Stilism | Holberg et al. 2016 | Limoges et al. 2015 | Sion et al. 2014 | Giammichele et al. 2012 | Kawka et Vennes 2006 | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 02 39 20.06 (0.05) | 02 39 20.05 (0.06) | 02 39 20.05 (0.06) | 02 39 19.67 | 02 39 19.68 | 02 39 20.06 | 02 39 19.69 (0.05) | 02 39 20.05 | 02 39 18.53 | ||||||||||||
| Declination | 26 09 54.69 (0.04) | 26 09 54.77 (0.05) | 26 09 54.77 (0.05) | 26 09 05.06 | 26 09 54.00 | 26 09 54.69 | 26 09 57.46 (0.04) | 26 09 54.77 | 26 10 05.52 | ||||||||||||
| Spectral type | DA | DA | DA | DA | DA | DA | DA | DA | DA | DA9.2 | DA | DA | DA | DA | DA9.2 | ||||||
| Effective temperature | [K] | 5604.0 (18) | 5553.0 (31) | 5608.0 (11) | 5605.0 (14) | 5550.9 (20) | 5590.0 (30) | 5580.0 (20) | 5666.0 (114) | 5590.0 (60) | 5500.0 | 5666.0 (114) | 5500.0 (500) | 5621.0 (22) | |||||||
| log(g) | [cgs] | 8.03 (0.006) | 8.00 (0.02) | 8.03 (0.005) | 8.03 (0.005) | 8.00 (0.01) | 8.03 (0.02) | 7.98 (0.01) | 8.00 (0) | 8.00 (0) | (0) | 8.00 | 8.03 (0.009) | ||||||||
| Mass | [M☉] | 0.604 (0.006) | 0.584 (0.01) | 0.606 (0.004) | 0.604 (0.005) | 0.603 (0.01) | 0.57 (0.01) | 0.59 (0) | 0.58 (0.1) | 0.59 (0) | 0.58 | 0.606 (0.008) | |||||||||
| log(Luminosity) | [L☉] | -3.84 (0.01) | -3.85 | -3.83 | |||||||||||||||||
| Cooling age | [Gyr] | 3.1100 | 3.1080 (0.2) | 2.8000 (0.1) | 2.8500 | 2.7300 | |||||||||||||||
| 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] | 47.93 (0.05) | 47.93 (0.05) | 47.95 (0.06) | 47.95 (0.06) | 47.95 (0.06) | 47.95 (0.06) | 47.09 (0.3) | 47.93 | 47.93 (0.05) | 47.95 (0.06) | ||||||||||
| Distance | [pc] | 20.86 (0.02) | 20.86 (0.02) | 20.86 (0.03) | 20.85 (0.03) | 20.85 (0.03) | 20.85 (0.03) | 21.24 (0.1) | 21.01 (0) | 21.10 (3) | 21.00 | 21.80 (0.8) | 21.00 | 20.86 | 20.86 (0.02) | 20.85 (0.03) | |||||
| Composition | H | H | H | H | H | H | H | H | |||||||||||||
| Proper motion (right ascension) | [mas/yr] | 316.4174084 (0.06) | 316.3280962 (0.1) | 316.417 (0.06) | 316.3280962 | ||||||||||||||||
| Proper motion (declination) | [mas/yr] | -173.1517778 (0.05) | -173.1893866 (0.1) | -173.152 (0.05) | -173.1893866 | ||||||||||||||||
| Variability | |||||||||||||||||||||
| Magnetic | |||||||||||||||||||||
| Bd | [MG] | ||||||||||||||||||||
| Infrared excess (disk) | |||||||||||||||||||||
| Binarity | |||||||||||||||||||||
| B magnitude | 16.60 | 17.00 | |||||||||||||||||||
| V magnitude | 16.29 | 16.29 | |||||||||||||||||||
| R magnitude | 15.80 | 15.40 | |||||||||||||||||||
| I magnitude | |||||||||||||||||||||
| J magnitude | 14.91 (0.03) | 14.91 (0.03) | 14.91 (0.03) | 14.91 | 14.91 (0.03) | ||||||||||||||||
| H magnitude | 14.61 (0.05) | 14.61 (0.05) | 14.61 (0.05) | 14.61 | 14.61 (0.05) | ||||||||||||||||
| K magnitude | 14.47 (0.07) | 14.47 (0.07) | 14.47 (0.07) | 14.47 | 14.47 (0.07) | ||||||||||||||||
| u magnitude | 17.55 (0.01) | 17.55 (0.01) | 17.55 (0.01) | ||||||||||||||||||
| g magnitude | 16.35 (0.005) | 16.42 (0.004) | |||||||||||||||||||
| r magnitude | 15.95 (0.01) | 15.92 (0.004) | |||||||||||||||||||
| i magnitude | 15.78 (0.004) | 15.73 (0.004) | |||||||||||||||||||
| z magnitude | 15.73 (0.005) | 15.69 (0.006) | |||||||||||||||||||
| G magnitude | 15.95 (0.003) | 15.97 | 15.97 | 15.95 | 15.95 (0.003) | 15.97 | |||||||||||||||
| BP magnitude | 16.32 (0.003) | 16.34 | 16.34 | ||||||||||||||||||
| RP magnitude | 15.42 (0.002) | 15.44 | 15.44 | ||||||||||||||||||
| Pan g magnitude | 16.35 (0.005) | 16.35 (0.005) | 16.35 (0.005) | ||||||||||||||||||
| Pan r magnitude | 15.95 (0.008) | 15.95 (0.01) | 15.95 (0.01) | ||||||||||||||||||
| Pan i magnitude | 15.78 (0.004) | 15.78 (0.004) | 15.78 (0.004) | ||||||||||||||||||
| Pan z magnitude | 15.73 (0.004) | 15.73 (0.005) | 15.73 (0.006) | ||||||||||||||||||
| Pan y magnitude | 15.71 (0.004) | 15.71 (0.004) | 15.71 (0.004) | ||||||||||||||||||
| E(B-V) | 0.000 | ||||||||||||||||||||
* 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.