All names: 1328+307, NLTT 34344, PLX 3085.01, Gaia EDR3 1468213546275054208, EGGR 391, TIC 321423513, WDJ133059.42+302953.65, WD 1328+30, G165-7, SDSS J133059.26+302953.2, J1330+3029, PM J13309+3029, G 165-7, WD 1328+307, USNO-B1.0 1204-00212044, GSC2U J133059.8+302955, Gaia DR3 1468213546275054208, 2MASS J13305940+3029536, USNO 734, Gaia DR2 1468213546275054208, LHS 2745, SDSS J133059.26+302953.1, LSPM J1330+3029, 13309+3029, PSO J202.7456+30.4978
| 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 | Leggett et al. 2018 | MWDD H | MWDD HE | Gaia DR2 | Stilism | Hollands et al. 2017 | Ferrario et al. 2015 | Limoges et al. 2015 | Hollands et al. 2015 | Koester et al. 2011 | Dufour et al. 2007 | Dufour et al. 2006 | Bergeron et al. 2001 | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 | White Dwarf Catalog (McCook & Sion 1999) | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 13 30 58.83 (0.03) | 13 30 59.26 | 13 30 58.84 (0.03) | 13 30 58.84 (0.03) | 13 30 58.83 | 13 30 59.42 (0.03) | 13 30 58.84 | 13 31 00.65 | ||||||||||||||||||
| Declination | 30 29 52.01 (0.02) | 30 29 53.19 | 30 29 52.06 (0.02) | 30 29 52.06 (0.02) | 30 29 52.01 | 30 29 53.65 (0.02) | 30 29 52.06 | 30 29 52.08 | ||||||||||||||||||
| Spectral type | DZH | DZH | DZH | DZH | DZ8.8 | DZ | DZ | DZ | DZ | DZ | DZA | DZ | DZ | DZ | DZ7 | DZH | DZ7 | DZ | ||||||||
| Effective temperature | [K] | 6351.0 (39) | 6274.0 (12) | 6403.9 (17) | 6220.0 (45) | 5726.0 (20) | 7145.0 | 6886.0 | 6100.0 (60) | 6440.0 (210) | 5950.0 (47) | 6000.0 | 6440.0 | 6440.0 (210) | 6440.0 (210) | 7320.0 (230) | 5760.0 (18) | |||||||||
| log(g) | [cgs] | 8.09 (0.02) | 8.21 (0.003) | 8.11 (0.009) | 8.18 (0.02) | 7.94 (0.02) | 8.39 | 8.30 | 7.75 (0.3) | 8.00 (0) | 7.99 (0.3) | 7.99 (0.3) | 8.21 (0.2) | 7.92 (0.006) | ||||||||||||
| Mass | [M☉] | 0.63 (0.01) | 0.703 (0.004) | 0.686 (0.01) | 0.533 (0.02) | 0.845 | 0.764 | 0.57 (0.2) | 0.43 (0.1) | 0.57 (0.2) | 0.57 (0.2) | 0.71 (0.1) | 0.523 (0.005) | |||||||||||||
| log(Luminosity) | [L☉] | -3.62 | -3.51 (0.1) | |||||||||||||||||||||||
| Cooling age | [Gyr] | 3.4300 | 3.4110 (0.2) | 2.8070 (0.1) | 3.2080 | 3.0050 | 3.1000 | 2.0200 (0.9) | ||||||||||||||||||
| log(H/He) | -3.0 | -3.0 | -3 | -3 (0.2) | -3 | |||||||||||||||||||||
| log(C/He) | ||||||||||||||||||||||||||
| log(Ca/He) | -8.16 | -8.1 | -8.4 | -8.1 | -8.1 (0.1) | -8.1 (0.1) | ||||||||||||||||||||
| log(Ca/H) | ||||||||||||||||||||||||||
| log(N/He) | ||||||||||||||||||||||||||
| log(O/He) | ||||||||||||||||||||||||||
| log(Na/He) | -8.8 | -8.4 | -8.43 (0.1) | |||||||||||||||||||||||
| log(Mg/He) | -7.15 | -6.9 | -6.88 (0.1) | |||||||||||||||||||||||
| log(Al/He) | ||||||||||||||||||||||||||
| log(Si/He) | ||||||||||||||||||||||||||
| log(P/He) | ||||||||||||||||||||||||||
| log(S/He) | ||||||||||||||||||||||||||
| log(Cl/He) | ||||||||||||||||||||||||||
| log(Sc/He) | ||||||||||||||||||||||||||
| log(Ti/He) | -9.7 | |||||||||||||||||||||||||
| log(V/He) | ||||||||||||||||||||||||||
| log(Cr/He) | -9.0 | <-9.30 | ||||||||||||||||||||||||
| log(Mn/He) | ||||||||||||||||||||||||||
| log(Fe/He) | -7.3 | -7.0 | -6.96 (0.1) | |||||||||||||||||||||||
| log(Co/He) | ||||||||||||||||||||||||||
| log(Ni/He) | -8.66 | |||||||||||||||||||||||||
| log(Cu/He) | ||||||||||||||||||||||||||
| log(Zn/He) | ||||||||||||||||||||||||||
| log(Ga/He) | ||||||||||||||||||||||||||
| log(Ge/He) | ||||||||||||||||||||||||||
| log(Sr/He) | ||||||||||||||||||||||||||
| Parallax | [mas] | 39.15 (0.04) | 39.15 (0.04) | 39.15 (0.05) | 39.15 (0.05) | 39.15 (0.05) | 38.75 (0.7) | 39.15 (0.05) | 33.40 (5) | 33.40 (5) | 33.40 (5) | 39.15 | 39.15 (0.04) | 39.15 (0.05) | 32.10 (53) | |||||||||||
| Distance | [pc] | 25.54 (0.03) | 25.54 (0.03) | 25.54 (0.03) | 25.55 (0.03) | 25.55 (0.03) | 25.81 (0.4) | 25.55 (0.03) | 26.10 (3) | 29.90 (5) | 29.94 (5) | 29.94 (5) | 25.54 | 25.54 (0.03) | 25.55 (0.03) | 31.15 (51) | ||||||||||
| Composition | He | He | He | He | He | He | He | He | He | |||||||||||||||||
| Proper motion (right ascension) | [mas/yr] | -478.4501529 (0.03) | -478.399823 (0.05) | -478.45 (0.03) | -478.4 | |||||||||||||||||||||
| Proper motion (declination) | [mas/yr] | -102.9265579 (0.02) | -102.9122616 (0.03) | -102.927 (0.02) | -102.912 | |||||||||||||||||||||
| Variability | ||||||||||||||||||||||||||
| Magnetic | yes | yes | yes | yes | ||||||||||||||||||||||
| Bd | [MG] | 0.57 (0.04) | 0.65 * | 0.65 | 0.65 * | |||||||||||||||||||||
| Infrared excess (disk) | ||||||||||||||||||||||||||
| Binarity | ||||||||||||||||||||||||||
| B magnitude | 16.73 (0.05) | 16.73 | 16.73 (0.05) | |||||||||||||||||||||||
| V magnitude | 16.03 (0.03) | 16.03 | 16.04 | |||||||||||||||||||||||
| R magnitude | 15.74 (0.03) | 15.74 | 15.74 (0.03) | |||||||||||||||||||||||
| I magnitude | 15.60 (0.03) | 15.60 | 15.60 (0.03) | |||||||||||||||||||||||
| J magnitude | 15.48 (0.007) | 15.40 (0.04) | 15.50 (0.05) | 15.50 | 15.40 (0.04) | |||||||||||||||||||||
| H magnitude | 15.39 (0.01) | 15.28 (0.09) | 15.36 (0.05) | 15.36 | 15.28 (0.09) | |||||||||||||||||||||
| K magnitude | 15.36 (0.01) | 15.41 (0.1) | 15.34 (0.05) | 15.34 | 15.41 (0.1) | |||||||||||||||||||||
| u magnitude | 18.26 (0.01) | 18.26 (0.01) | 18.28 (0.02) | 18.28 (0.02) | 18.30 (0.02) | 18.27 (0.02) | 18.26 (0.01) | 18.26 (0.01) | 18.27 | |||||||||||||||||
| g magnitude | 16.31 (0.004) | 16.32 (0.02) | 16.32 (0.02) | 16.31 (0.02) | 16.32 (0.003) | 16.21 (0.004) | 16.31 (0.004) | 16.28 | ||||||||||||||||||
| r magnitude | 15.90 (0.003) | 15.89 (0.01) | 15.89 (0.01) | 15.88 (0.01) | 15.92 (0.003) | 15.89 (0.001) | 15.90 (0.003) | 15.87 | ||||||||||||||||||
| i magnitude | 15.91 (0.004) | 15.90 (0.02) | 15.91 (0.02) | 15.90 (0.03) | 15.93 (0.004) | 15.94 (0.003) | 15.91 (0.004) | 15.90 | ||||||||||||||||||
| z magnitude | 16.09 (0.007) | 16.09 (0.03) | 16.09 (0.03) | 16.09 (0.02) | 16.10 (0.007) | 16.08 (0.004) | 16.09 (0.007) | 16.08 | ||||||||||||||||||
| G magnitude | 15.97 (0.002) | 15.98 | 15.98 | 15.97 | 15.97 (0.003) | 15.98 | ||||||||||||||||||||
| BP magnitude | 16.23 (0.002) | 16.28 | 16.28 | |||||||||||||||||||||||
| RP magnitude | 15.61 (0.002) | 15.62 | 15.62 | |||||||||||||||||||||||
| Pan g magnitude | 16.21 (0.007) | 16.21 (0.007) | 16.21 (0.004) | |||||||||||||||||||||||
| Pan r magnitude | 15.91 (0.002) | 15.91 (0.002) | 15.89 (0.001) | |||||||||||||||||||||||
| Pan i magnitude | 15.94 (0.01) | 15.94 (0.01) | 15.94 (0.003) | |||||||||||||||||||||||
| Pan z magnitude | 16.09 (0.02) | 16.09 (0.02) | 16.08 (0.004) | |||||||||||||||||||||||
| Pan y magnitude | 16.12 (0.006) | 16.12 (0.006) | 16.12 (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.