All names: SDSS J084909.45+342947.7, Gaia EDR3 716504796716020352, KUV 08460+3441, GD 96, GALEX J084909.4+342948, 2MASS J08490947+3429477, J0849+3429, GJ 2073, Gaia DR3 716504796716020352, EGGR 323, 08491+3429, LAMOST J084909.36+342947.9, CBS 85, PM J08491+3429, WD 0846+346, GEN# +6.10060096, WD 0846+34, SDSS J084909.43+342947.7, Gaia DR2 716504796716020352, 1SWASP J084909.48+342947.8, Ton 953, TIC 284894657, WDJ084909.48+342947.73, PSO J132.2888+34.4966, WIRED J084909.45+342947.7
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Kilic et al. 2025 | O'Brien et al. 2024 | Caron et al. 2023 | Blouin & Xu 2022 | Kilic et al. 2020 | McCleery et al. 2020 | Blouin et al. 2019 | MWDD H | Gaia DR2 | Stilism | Limoges et al. 2015 | Gianninas et al. 2011 | Tremblay et al. 2011 | Farihi et al. 2008 | Kilic et al. 2006 | Zuckerman et al. 2003 | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 | Eisenstein et al. 2006 | White Dwarf Catalog (McCook & Sion 1999) | Kleinman et al. 2013 | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 08 49 09.32 (0.03) | 08 49 09.43 | 08 49 09.32 (0.04) | 08 49 09.32 (0.04) | 08 49 09.32 | 08 49 09.48 (0.03) | 08 49 09.32 | 08 49 09.45 | 08 49 10.03 | 08 49 09.45 | |||||||||||||||||
| Declination | 34 29 47.86 (0.02) | 34 29 47.74 | 34 29 47.85 (0.03) | 34 29 47.85 (0.03) | 34 29 47.86 | 34 29 47.73 (0.02) | 34 29 47.85 | 34 29 47.71 | 34 29 44.88 | 34 29 47.71 | |||||||||||||||||
| Spectral type | DA | DAZ | DA | DA | DAZ | DA | DA | DA | DA | DA | DAZ | DAZ | DA | DA6.6 | DA | DA_auto | DA7 | DA | DA | ||||||||
| Effective temperature | [K] | 7502.0 (31) | 7445.0 (59) | 7548.0 (22) | 7452.0 (58) | 7502.0 (31) | 7400.5 (38) | 7415.0 (70) | 7437.0 | 7530.0 (111) | 7620.0 (110) | 7490.0 (10) | 7370.0 | 7373.0 | 7373.0 | 7502.0 (29) | 7908.0 (16) | 7343.0 (17) | |||||||||
| log(g) | [cgs] | 7.97 (0.007) | 7.94 (0.02) | 7.98 (0.006) | 7.95 (0.02) | 7.96 (0.007) | 7.93 (0.02) | 7.95 (0.02) | 7.95 | 8.08 (0.07) | 8.13 (0.06) | 8.02 (0.03) | 8.00 | 8.00 | 7.96 (0.007) | 8.47 (0.03) | 7.80 (0.03) | ||||||||||
| Mass | [M☉] | 0.574 (0.006) | 0.56 (0.01) | 0.581 (0.005) | 0.566 (0.01) | 0.573 (0.006) | 0.563 (0.01) | 0.562 | 0.64 (0.04) | 0.68 (0.04) | 0.6 (0.02) | 0.572 (0.006) | 0.493 (0.01) | ||||||||||||||
| log(Luminosity) | [L☉] | -3.37 | |||||||||||||||||||||||||
| Cooling age | [Gyr] | 1.2500 | 1.2400 | 1.2210 (0.05) | 1.2080 | 1.3183 | |||||||||||||||||||||
| log(H/He) | |||||||||||||||||||||||||||
| log(C/He) | |||||||||||||||||||||||||||
| log(Ca/He) | |||||||||||||||||||||||||||
| log(Ca/H) | -9.66 (0.09) | -9.41 | -9.4 | -9.409 | |||||||||||||||||||||||
| 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] | 32.43 (0.04) | 32.43 (0.04) | 32.37 (0.05) | 32.37 (0.05) | 32.37 (0.05) | 32.37 (0.06) | 32.37 (0.05) | 32.43 | 32.43 (0.04) | 32.37 (0.05) | ||||||||||||||||
| Distance | [pc] | 30.84 (0.04) | 30.84 (0.04) | 30.89 (0.05) | 30.89 (0.05) | 30.89 (0.05) | 30.89 (0.05) | 30.89 (0.05) | 28.70 (0.9) | 28.00 | 30.84 | 30.84 (0.04) | 30.89 (0.05) | ||||||||||||||
| Composition | H | H | H | H | H | H | H | H | H | H | |||||||||||||||||
| Proper motion (right ascension) | [mas/yr] | -124.5095715 (0.04) | -124.5841304 (0.08) | -124.51 (0.04) | -124.584 | -119.6 | |||||||||||||||||||||
| Proper motion (declination) | [mas/yr] | 7.796204644 (0.03) | 7.724760037 (0.05) | 7.796 (0.03) | 7.725 | 8.0 | |||||||||||||||||||||
| Variability | |||||||||||||||||||||||||||
| Magnetic | |||||||||||||||||||||||||||
| Bd | [MG] | ||||||||||||||||||||||||||
| Infrared excess (disk) | |||||||||||||||||||||||||||
| Binarity | |||||||||||||||||||||||||||
| B magnitude | 15.99 | ||||||||||||||||||||||||||
| V magnitude | 15.71 | 15.72 | |||||||||||||||||||||||||
| R magnitude | |||||||||||||||||||||||||||
| I magnitude | |||||||||||||||||||||||||||
| J magnitude | 15.04 (0.005) | 15.04 (0.04) | 15.07 | 15.04 (0.04) | |||||||||||||||||||||||
| H magnitude | 14.83 (0.07) | 14.83 (0.07) | 14.87 | 14.83 (0.07) | |||||||||||||||||||||||
| K magnitude | 14.90 (0.1) | 14.90 (0.1) | 14.86 | 14.90 (0.1) | |||||||||||||||||||||||
| u magnitude | 16.21 (0.006) | 16.19 (0.005) | 16.21 (0.006) | 16.18 (0.005) | 16.22 (0.02) | 16.22 | 16.20 (0.02) | ||||||||||||||||||||
| g magnitude | 15.73 (0.004) | 15.73 (0.004) | 15.74 (0.004) | 15.76 (0.03) | 15.75 | 15.74 (0.03) | |||||||||||||||||||||
| r magnitude | 15.60 (0.004) | 15.62 (0.002) | 15.62 (0.003) | 15.62 (0.01) | 15.61 | 15.61 (0.01) | |||||||||||||||||||||
| i magnitude | 15.60 (0.005) | 15.61 (0.002) | 15.61 (0.004) | 15.62 (0.02) | 15.61 | 15.61 (0.02) | |||||||||||||||||||||
| z magnitude | 15.67 (0.006) | 15.69 (0.003) | 15.64 (0.006) | 15.70 (0.03) | 15.69 | 15.68 (0.03) | |||||||||||||||||||||
| G magnitude | 15.57 (0.002) | 15.59 | 15.59 | 15.57 | 15.57 (0.003) | 15.59 | |||||||||||||||||||||
| BP magnitude | 15.73 (0.002) | 15.72 | 15.72 | ||||||||||||||||||||||||
| RP magnitude | 15.28 (0.002) | 15.29 | 15.29 | ||||||||||||||||||||||||
| Pan g magnitude | 15.73 (0.004) | 15.73 (0.004) | 15.73 (0.004) | 15.73 (0.004) | |||||||||||||||||||||||
| Pan r magnitude | 15.62 (0.002) | 15.62 (0.002) | 15.62 (0.002) | 15.62 (0.002) | |||||||||||||||||||||||
| Pan i magnitude | 15.61 (0.002) | 15.61 (0.002) | 15.61 (0.002) | 15.61 (0.002) | |||||||||||||||||||||||
| Pan z magnitude | 15.69 (0.004) | 15.69 (0.003) | 15.69 (0.003) | 15.69 (0.003) | |||||||||||||||||||||||
| Pan y magnitude | 15.73 (0.007) | 15.73 (0.006) | 15.73 (0.006) | 15.73 (0.006) | |||||||||||||||||||||||
| 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.