All names: LAMOST J122630.88+303853.2, Gaia EDR3 4012093916593061120, V* LM Com, [SGR2010] J1226+3038, WD 1224+309, SDSS J122630.86+303852.5, TIC 82347011, WIRED J122630.86+303852.5, 2MASS J12263089+3038527, Gaia DR3 4012093916593061120, [HHD2009] SDSS J1226+3038, CRTS J122630.8+303852, ATO J186.6284+30.6479, CBS 60, SDSS J122630.84+303852.5, Ton 617, PG 1224+309, Gaia DR2 4012093916593061120, LAMOST J122630.86+303852.5, Pul -3 950173, SDSS J122630.87+303852.6, GALEX J122630.8+303853
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Gaia DR2 | Stilism | sdss-wdms.org (29/04/2016) | Guo et al. 2015 | Gianninas et al. 2011 | Liebert et al. 2005 | Vincent et al. 2024 | Simbad | White Dwarf Catalog (McCook & Sion 1999) | Kleinman et al. 2013 | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 12 26 30.83 (0.04) | 12 26 30.86 | 12 26 30.83 (0.06) | 12 26 30.86 | 12 26 30.83 | 12 26 30.87 (0.04) | 12 26 30.38 | 12 26 30.87 | |||||||
| Declination | 30 38 52.68 (0.04) | 30 38 52.58 | 30 38 52.68 (0.05) | 30 38 52.51 | 30 38 52.68 | 30 38 52.65 (0.04) | 30 39 00.00 | 30 38 52.57 | |||||||
| Spectral type | DA+M | DA | DA | DA | DA+M3 | DA | DA+M | DA+MS | |||||||
| Effective temperature | [K] | 30071.0 (66) | 29750.0 (484) | 28820.0 (480) | 17511.0 (429) | 31111.0 (38) | |||||||||
| log(g) | [cgs] | 7.41 (0.04) | 7.48 (0.06) | 7.38 (0.06) | 6.54 (0.02) | 7.31 (0.02) | |||||||||
| Mass | [M☉] | 0.4 (0.01) | 0.44 (0.02) | 0.42 (0.02) | 0.206 (0.004) | ||||||||||
| log(Luminosity) | [L☉] | -0.53 | |||||||||||||
| Cooling age | [Gyr] | 0.0120 | |||||||||||||
| 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] | 3.44 (0.05) | 3.42 (0.07) | 3.44 | 3.44 (0.05) | ||||||||||
| Distance | [pc] | 291.00 (4) | 292.66 (6) | 238.00 | 272.00 | 291.00 | 291.00 (4) | ||||||||
| Composition | H | ||||||||||||||
| Proper motion (right ascension) | [mas/yr] | -32.65260302 (0.05) | -32.68226879 (0.1) | -32.653 (0.05) | |||||||||||
| Proper motion (declination) | [mas/yr] | 1.7730933 (0.06) | 1.754199135 (0.1) | 1.773 (0.06) | |||||||||||
| Variability | |||||||||||||||
| Magnetic | |||||||||||||||
| Bd | [MG] | ||||||||||||||
| Infrared excess (disk) | |||||||||||||||
| Binarity | WDMS | WDMS | WDMS | ||||||||||||
| B magnitude | 16.10 | ||||||||||||||
| V magnitude | 16.15 | 16.05 | |||||||||||||
| R magnitude | |||||||||||||||
| I magnitude | |||||||||||||||
| J magnitude | 15.13 (0.05) | ||||||||||||||
| H magnitude | 14.67 (0.07) | ||||||||||||||
| K magnitude | 14.41 (0.008) | ||||||||||||||
| u magnitude | 15.93 (0.005) | 16.05 | 15.93 (0.005) | 16.04 | 16.06 (0.09) | ||||||||||
| g magnitude | 16.00 (0.004) | 15.97 | 16.00 (0.004) | 15.96 | 15.96 (0.02) | ||||||||||
| r magnitude | 16.39 (0.004) | 16.41 | 16.39 (0.004) | 16.40 | 16.40 (0.01) | ||||||||||
| i magnitude | 16.35 (0.004) | 16.43 | 16.35 (0.004) | 16.42 | 16.43 (0.02) | ||||||||||
| z magnitude | 16.16 (0.007) | 16.15 | 16.16 (0.007) | 16.14 | 16.15 (0.03) | ||||||||||
| G magnitude | 16.04 (0.008) | 16.07 | 16.04 | 16.04 (0.004) | |||||||||||
| BP magnitude | 16.05 (0.008) | 16.02 | |||||||||||||
| RP magnitude | 15.89 (0.01) | 15.90 | |||||||||||||
| Pan g magnitude | 16.03 (0.007) | ||||||||||||||
| Pan r magnitude | 16.26 (0.02) | ||||||||||||||
| Pan i magnitude | 16.24 (0.01) | ||||||||||||||
| Pan z magnitude | 16.10 (0.02) | ||||||||||||||
| Pan y magnitude | 16.01 (0.005) | ||||||||||||||
| E(B-V) | 0.013 | ||||||||||||||
* 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.