All names: EC 11490-2715, Gaia EDR3 3487220772397809536, Gaia DR3 3487220772397809536, WT 1902, TIC 397418667, LEHPM 2-4051, 2MASS J11513610-2732210, Gaia DR2 3487220772397809536, J1151-2732, GALEX J115135.9-273220, WDJ115136.10-273221.13, LEHPM2-4051, PSO J177.8995-27.5390, WD 1149-272
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | O'Brien et al. 2024 | Caron et al. 2023 | Coutu et al. 2019 | Blouin et al. 2019 | Gaia DR2 | Subasavage et al. 2017 | Stilism | Holberg et al. 2016 | Sion et al. 2014 | Subasavage et al. 2007 | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 11 51 35.84 (0.03) | 11 51 36.10 | 11 51 35.85 (0.04) | 11 51 36.11 | 11 51 36.00 | 11 51 36.10 | 11 51 35.84 | 11 51 36.10 (0.03) | 11 51 35.85 | 11 51 36.29 | |||||||
| Declination | -27 32 20.38 (0.02) | -27 32 21.13 | -27 32 20.40 (0.03) | -27 32 02.01 | -27 32 20.40 | -27 32 21.00 | -27 32 20.38 | -27 32 21.13 (0.02) | -27 32 20.40 | -27 32 17.52 | |||||||
| Spectral type | DQ | DQ | DQ | DQ | DQ | DQ | DQ8.1 | DQ | DC | DQ | DQ8.1 | ||||||
| Effective temperature | [K] | 6773.0 (46) | 6341.0 (15) | 6436.0 (148) | 6450.0 (50) | 6280.0 (200) | 6119.0 (194) | 6200.0 | 6188.0 (194) | 6311.0 (31) | |||||||
| log(g) | [cgs] | 8.10 (0.02) | 7.93 (0.004) | 7.97 | 7.99 (0.02) | 7.86 (0.07) | 7.99 (0) | 7.94 (0.008) | |||||||||
| Mass | [M☉] | 0.638 (0.01) | 0.535 (0.004) | 0.5556 | 0.564 (0.01) | 0.49 (0.05) | 0.58 (0) | 0.539 (0.006) | |||||||||
| log(Luminosity) | [L☉] | -3.58 (0.07) | |||||||||||||||
| Cooling age | [Gyr] | 1.9200 | 1.8400 | 1.8620 (0.07) | 1.7400 (0.2) | 2.1100 | |||||||||||
| log(H/He) | |||||||||||||||||
| log(C/He) | -6.98 | -6.6959 (0.04) | -6.85 | -7.15 | |||||||||||||
| log(Ca/He) | |||||||||||||||||
| log(Ca/H) | |||||||||||||||||
| log(N/He) | |||||||||||||||||
| log(O/He) | |||||||||||||||||
| log(Na/He) | |||||||||||||||||
| log(Mg/He) | |||||||||||||||||
| log(Al/He) | |||||||||||||||||
| log(Si/He) | |||||||||||||||||
| log(P/He) | |||||||||||||||||
| log(S/He) | |||||||||||||||||
| log(Cl/He) | |||||||||||||||||
| log(Sc/He) | |||||||||||||||||
| log(Ti/He) | |||||||||||||||||
| log(V/He) | |||||||||||||||||
| log(Cr/He) | |||||||||||||||||
| log(Mn/He) | |||||||||||||||||
| log(Fe/He) | |||||||||||||||||
| log(Co/He) | |||||||||||||||||
| log(Ni/He) | |||||||||||||||||
| log(Cu/He) | |||||||||||||||||
| log(Zn/He) | |||||||||||||||||
| log(Ga/He) | |||||||||||||||||
| log(Ge/He) | |||||||||||||||||
| log(Sr/He) | |||||||||||||||||
| Parallax | [mas] | 39.72 (0.04) | 39.72 (0.04) | 39.75 (0.05) | 39.75 | 39.75 (0.05) | 39.75 (0.05) | 38.05 (1) | 39.72 | 39.72 (0.04) | 39.75 (0.05) | ||||||
| Distance | [pc] | 25.17 (0.02) | 25.18 (0.03) | 25.16 (0.03) | 25.16 (0.03) | 25.16 (0.03) | 25.16 (0.03) | 26.28 (0.7) | 25.39 (0.5) | 24.40 | 24.00 | 25.17 | 25.17 (0.02) | 25.16 (0.03) | |||
| Composition | He | He | He | He | H | He | |||||||||||
| Proper motion (right ascension) | [mas/yr] | -218.477073 (0.04) | -218.392312 (0.08) | -218.477 (0.04) | -218.392312 | ||||||||||||
| Proper motion (declination) | [mas/yr] | 47.2937294 (0.03) | 47.29997008 (0.04) | 47.294 (0.03) | 47.29997008 | ||||||||||||
| Variability | |||||||||||||||||
| Magnetic | |||||||||||||||||
| Bd | [MG] | ||||||||||||||||
| Infrared excess (disk) | |||||||||||||||||
| Binarity | |||||||||||||||||
| B magnitude | 16.00 | ||||||||||||||||
| V magnitude | 15.87 | 15.87 | 15.77 | ||||||||||||||
| R magnitude | 15.59 | 15.59 | |||||||||||||||
| I magnitude | 15.37 | 15.37 | |||||||||||||||
| J magnitude | 15.09 (0.005) | 15.17 (0.05) | 15.17 (0.05) | 15.17 (0.05) | 15.17 (0.05) | ||||||||||||
| H magnitude | 14.92 (0.07) | 14.92 (0.07) | 14.92 (0.07) | 14.92 (0.06) | 14.92 (0.07) | ||||||||||||
| K magnitude | 14.90 (0.02) | 14.77 (0.1) | 14.77 (0.1) | 14.77 (0.1) | 14.77 (0.1) | ||||||||||||
| u magnitude | |||||||||||||||||
| g magnitude | 15.95 (0.003) | ||||||||||||||||
| r magnitude | 15.73 (0.003) | ||||||||||||||||
| i magnitude | 15.73 (0.001) | ||||||||||||||||
| z magnitude | 15.77 (0.004) | ||||||||||||||||
| G magnitude | 15.73 (0.002) | 15.74 | 15.73 | 15.73 (0.003) | 15.74 | ||||||||||||
| BP magnitude | 15.92 (0.002) | 15.93 | 15.93 | ||||||||||||||
| RP magnitude | 15.38 (0.002) | 15.39 | 15.39 | ||||||||||||||
| Pan g magnitude | 15.95 (0.004) | 15.95 (0.003) | 15.95 (0.003) | ||||||||||||||
| Pan r magnitude | 15.73 (0.002) | 15.73 (0.003) | 15.73 (0.003) | ||||||||||||||
| Pan i magnitude | 15.73 (0.001) | 15.73 (0.001) | 15.73 (0.001) | ||||||||||||||
| Pan z magnitude | 15.77 (0.005) | 15.77 (0.005) | 15.77 (0.005) | ||||||||||||||
| Pan y magnitude | 15.80 (0.006) | 15.80 (0.006) | 15.80 (0.006) | ||||||||||||||
| 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.