WD 1425+540
All names: uvby98 980200039, Gaia EDR3 1608497864040134016, TIC 284628173, LSPM J1427+5347, Gaia DR3 1608497864040134016, 2MASS J14273615+5348280, SDSS J142736.05+534828.4, WDS J14277+5347B, WD 1425+54, EGGR 295, PG 1425+540, USNO 326, UCAC4 720-053533, IDS 14244+5414 A, USNO-B1.0 1437-00234196, SDSS J142736.04+534828.5, WD 1425+540, GEN# +9.80200040, Gaia DR2 1608497864040134016, ** GIC 119B, G 200-39, SBSS 1425+540, UCAC3 288-117830, CCDM J14276+5348A, NLTT 37443, G200-39, G200-039, GALEX J142735.9+534829, CBS 269, WDJ142736.17+534828.00, SDSS J142736.05+534828.5, GSC 03859-01272
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | Kilic et al. 2026a | Kilic et al. 2025 | MWDD HE | Gaia DR2 | Xu et al. 2017 (Model I) | Xu et al. 2017 (Model II) | Stilism | Bergeron et al. 2011 | Zuckerman et al. 2010 | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 14 27 35.55 (0.02) | 14 27 35.57 (0.03) | 14 27 35.55 | 14 27 36.17 (0.02) | 14 27 35.57 | 14 27 37.99 | ||||||||||
| Declination | 53 48 30.24 (0.02) | 53 48 30.17 (0.03) | 53 48 30.24 | 53 48 28.00 (0.02) | 53 48 30.17 | 53 48 12.60 | ||||||||||
| Spectral type | DBAZ | DBAZ | DBA | DBAZ | DBAZ | DBA | DBAZ | DB | DBAZ4 | DBA4 | ||||||
| Effective temperature | [K] | 14093.0 (406) | 14091.0 (80) | 14213.0 | 14490.0 (345) | 14490.0 (345) | 14490.0 (345) | 14750.0 | 15244.0 (129) | |||||||
| log(g) | [cgs] | 8.00 (0.04) | 8.03 (0.007) | 8.04 | 7.95 (0.08) | 7.95 (0.08) | 7.95 (0.08) | 8.13 (0.009) | ||||||||
| Mass | [M☉] | 0.591 (0.04) | 0.603 (0.006) | 0.612 | 0.56 (0.05) | 0.56 (0.05) | 0.56 (0.05) | 0.671 (0.008) | ||||||||
| log(Luminosity) | [L☉] | -2.16 | ||||||||||||||
| Cooling age | [Gyr] | 0.2512 | 0.2138 | 0.2138 | 0.2138 | 2.2000 | ||||||||||
| log(H/He) | -4.0 | -4.5 | -4.2 (0.1) | -3.0 (0.1) | -4.2 (0.03) | |||||||||||
| log(C/He) | -7.29 (0.2) | -7.28 (0.3) | ||||||||||||||
| log(Ca/He) | -8.65 | -9.26 (0.1) | -9.31 (0.1) | -9.3 | ||||||||||||
| log(Ca/H) | ||||||||||||||||
| log(Li/He) | ||||||||||||||||
| log(Be/He) | ||||||||||||||||
| log(B/He) | ||||||||||||||||
| log(N/He) | -8.09 (0.1) | -7.97 (0.1) | ||||||||||||||
| log(O/He) | -6.62 (0.2) | -6.51 (0.2) | ||||||||||||||
| log(Na/He) | ||||||||||||||||
| log(Mg/He) | -8.16 (0.2) | -8.11 (0.2) | ||||||||||||||
| log(Al/He) | ||||||||||||||||
| log(Si/He) | -8.03 (0.3) | -7.87 (0.3) | ||||||||||||||
| log(P/He) | ||||||||||||||||
| log(S/He) | -8.36 (0.1) | -8.13 (0.2) | ||||||||||||||
| log(Cl/He) | ||||||||||||||||
| log(K/He) | ||||||||||||||||
| log(Sc/He) | ||||||||||||||||
| log(Ti/He) | ||||||||||||||||
| log(V/He) | ||||||||||||||||
| log(Cr/He) | ||||||||||||||||
| log(Mn/He) | ||||||||||||||||
| log(Fe/He) | -8.15 (0.1) | -7.99 (0.1) | ||||||||||||||
| log(Co/He) | ||||||||||||||||
| log(Ni/He) | -9.67 (0.2) | -9.52 (0.2) | ||||||||||||||
| log(Cu/He) | ||||||||||||||||
| log(Zn/He) | ||||||||||||||||
| log(Ga/He) | ||||||||||||||||
| log(Ge/He) | ||||||||||||||||
| log(Sr/He) | ||||||||||||||||
| Parallax | [mas] | 19.40 (0.02) | 19.41 (0.03) | 19.40 | 19.40 (0.02) | 19.41 (0.03) | 16.00 (3) | |||||||||
| Distance | [pc] | 51.54 (0.06) | 51.52 (0.09) | 58.00 (13) | 58.00 (13) | 56.00 | 51.54 | 51.54 (0.06) | 51.52 (0.09) | 62.50 (12) | ||||||
| Composition | He | He | He | He | He | |||||||||||
| Proper motion (right ascension) | [mas/yr] | -344.7888159 (0.03) | -344.9117557 (0.05) | -344.789 (0.03) | -344.9117557 | |||||||||||
| Proper motion (declination) | [mas/yr] | 140.0169412 (0.03) | 140.0132938 (0.05) | 140.017 (0.03) | 140.0132938 | |||||||||||
| Variability | ||||||||||||||||
| Magnetic | ||||||||||||||||
| Bd | [MG] | |||||||||||||||
| Infrared excess (disk) | ||||||||||||||||
| Binarity | yes | |||||||||||||||
| B magnitude | 14.86 (0.07) | |||||||||||||||
| V magnitude | 15.04 | 14.99 (0.05) | ||||||||||||||
| R magnitude | 15.35 (0.1) | |||||||||||||||
| I magnitude | ||||||||||||||||
| J magnitude | 15.35 (0.06) | |||||||||||||||
| H magnitude | 15.51 (0.1) | |||||||||||||||
| K magnitude | 15.66 (0.2) | |||||||||||||||
| u magnitude | 14.77 (0.004) | 14.77 (0.004) | ||||||||||||||
| g magnitude | 14.86 (0.003) | 14.86 (0.003) | ||||||||||||||
| r magnitude | 15.15 (0.003) | 15.15 (0.003) | ||||||||||||||
| i magnitude | 15.37 (0.004) | 15.37 (0.004) | ||||||||||||||
| z magnitude | 15.65 (0.006) | 15.65 (0.006) | ||||||||||||||
| G magnitude | 14.99 (0.001) | 15.02 | 14.99 | 14.99 (0.003) | 15.02 | |||||||||||
| BP magnitude | 14.94 (0.001) | 14.90 | 14.90 | |||||||||||||
| RP magnitude | 15.08 (0.001) | 15.08 | 15.08 | |||||||||||||
| Pan g magnitude | 14.92 (0.0007) | |||||||||||||||
| Pan r magnitude | 15.16 (0.003) | |||||||||||||||
| Pan i magnitude | 15.42 (0.004) | |||||||||||||||
| Pan z magnitude | 15.63 (0.004) | |||||||||||||||
| Pan y magnitude | 15.77 (0.004) | |||||||||||||||
| E(B-V) | 0.006 | |||||||||||||||
* Constant surface field
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