All names: SDSS J134944.51+275522.0, CTI 134910.5+275904, GALEX J134944.5+275522, TIC 359243645, SDSS J134944.52+275522.1, LSPM J1349+2755, Gaia EDR3 1451566149955227520, PSO J207.4348+27.9229, J1349+2755, USNO-B1.0 1179-00266812, WD 1347+281, 2MASS J13494460+2755217, Gaia DR3 1451566149955227520, PM J13497+2755, G 150-43, WIRED J134944.51+275522.0, WD 1347+283, G150-43, GEN# +9.80150043, 13497+2755, WDJ134944.61+275521.76, SDSS J134944.52+275522.0, NLTT 35384, Gaia DR2 1451566149955227520
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | O'Brien et al. 2024 | Caron et al. 2023 | McCleery et al. 2020 | Blouin et al. 2019 | MWDD H | MWDD HE | Gaia DR2 | Stilism | Limoges et al. 2015 | Gianninas et al. 2011 | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 | White Dwarf Catalog (McCook & Sion 1999) | Kleinman et al. 2013 | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 13 49 44.30 (0.03) | 13 49 44.52 | 13 49 44.31 (0.04) | 13 49 44.31 (0.04) | 13 49 44.30 | 13 49 44.61 (0.03) | 13 49 44.31 | 13 49 45.53 | 13 49 44.52 | |||||||||||
| Declination | 27 55 22.87 (0.03) | 27 55 22.09 | 27 55 22.83 (0.03) | 27 55 22.83 (0.03) | 27 55 22.87 | 27 55 21.76 (0.03) | 27 55 22.83 | 27 55 26.40 | 27 55 22.08 | |||||||||||
| Spectral type | DA | DA | DA | DA | DA | DA | DA | DA6.9 | DA | DA7 | DA | DA | ||||||||
| Effective temperature | [K] | 7240.0 (61) | 7308.0 (17) | 7243.6 (37) | 7230.0 (55) | 7145.0 | 6878.0 | 7260.0 (120) | 7350.0 (124) | 7342.0 (34) | 7184.0 (23) | |||||||||
| log(g) | [cgs] | 8.39 (0.02) | 8.42 (0.004) | 8.40 (0.01) | 8.40 (0.02) | 8.37 | 8.27 | 8.41 (0.1) | 8.50 (0.1) | 8.42 (0.007) | 8.21 (0.03) | |||||||||
| Mass | [M☉] | 0.844 (0.01) | 0.862 (0.004) | 0.851 (0.01) | 0.829 | 0.746 | 0.86 (0.08) | 0.92 (0.08) | 0.863 (0.007) | |||||||||||
| log(Luminosity) | [L☉] | -3.64 | ||||||||||||||||||
| Cooling age | [Gyr] | 3.3000 | 3.1450 (0.1) | 3.0790 | 2.8640 | |||||||||||||||
| 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] | 33.35 (0.04) | 33.35 (0.04) | 33.33 (0.05) | 33.33 (0.05) | 33.33 (0.05) | 33.33 (0.05) | 33.35 | 33.35 (0.04) | 33.33 (0.05) | ||||||||||
| Distance | [pc] | 29.99 (0.04) | 29.99 (0.04) | 30.00 (0.05) | 30.00 (0.05) | 30.00 (0.05) | 30.00 (0.05) | 29.60 (1) | 27.00 | 29.99 | 29.99 (0.04) | 30.00 (0.05) | ||||||||
| Composition | H | H | H | H | H | |||||||||||||||
| Proper motion (right ascension) | [mas/yr] | -254.9648288 (0.05) | -255.0286246 (0.09) | -254.965 (0.05) | -255.029 | |||||||||||||||
| Proper motion (declination) | [mas/yr] | 68.86124693 (0.03) | 68.90922771 (0.06) | 68.861 (0.03) | 68.909 | |||||||||||||||
| Variability | ||||||||||||||||||||
| Magnetic | ||||||||||||||||||||
| Bd | [MG] | |||||||||||||||||||
| Infrared excess (disk) | ||||||||||||||||||||
| Binarity | ||||||||||||||||||||
| B magnitude | 16.65 | |||||||||||||||||||
| V magnitude | ||||||||||||||||||||
| R magnitude | 16.20 | |||||||||||||||||||
| I magnitude | ||||||||||||||||||||
| J magnitude | 15.69 (0.006) | 15.74 (0.07) | 15.74 (0.07) | |||||||||||||||||
| H magnitude | 15.54 (0.009) | 15.68 (0.1) | 15.68 (0.1) | |||||||||||||||||
| K magnitude | 15.52 (0.02) | 15.60 (0.2) | 15.60 (0.2) | |||||||||||||||||
| u magnitude | 16.97 (0.008) | 16.96 (0.008) | 16.97 (0.008) | 16.97 (0.008) | 16.96 (0.02) | |||||||||||||||
| g magnitude | 16.47 (0.004) | 16.44 (0.002) | 16.47 (0.004) | 16.47 (0.02) | ||||||||||||||||
| r magnitude | 16.32 (0.004) | 16.33 (0.004) | 16.32 (0.004) | 16.32 (0.03) | ||||||||||||||||
| i magnitude | 16.30 (0.005) | 16.30 (0.003) | 16.30 (0.005) | 16.29 (0.01) | ||||||||||||||||
| z magnitude | 16.38 (0.008) | 16.35 (0.003) | 16.39 (0.008) | 16.38 (0.04) | ||||||||||||||||
| G magnitude | 16.28 (0.003) | 16.29 | 16.29 | 16.28 | 16.28 (0.003) | 16.29 | ||||||||||||||
| BP magnitude | 16.45 (0.003) | 16.44 | 16.44 | |||||||||||||||||
| RP magnitude | 15.97 (0.002) | 15.98 | 15.98 | |||||||||||||||||
| Pan g magnitude | 16.46 (0.008) | 16.44 (0.002) | 16.45 (0.002) | |||||||||||||||||
| Pan r magnitude | 16.31 (0.0004) | 16.33 (0.004) | 16.33 (0.004) | |||||||||||||||||
| Pan i magnitude | 16.33 (0.001) | 16.30 (0.003) | 16.30 (0.003) | |||||||||||||||||
| Pan z magnitude | 16.35 (0.005) | 16.35 (0.003) | 16.35 (0.002) | |||||||||||||||||
| Pan y magnitude | 16.37 (0.007) | 16.40 (0.007) | 16.40 (0.007) | |||||||||||||||||
| 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.