NLTT 57978
All names: SDSS J234735.23+030433.9, WD 2345+027, TIC 293358674, Gaia DR3 2742789930821144320, LP 643-65, Gaia EDR3 2742789930821144320, PM J23475+0304, PSO J356.8970+03.0764, NLTT 57978, 23475+0304, LSPM J2347+0304, 2MASS J23473512+0304321, Gaia DR2 2742789930821144320, WDJ234735.13+030431.87, USNO-B1.0 0930-00762196, J2347+0304
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | Kilic et al. 2025 | O'Brien et al. 2024 | Caron et al. 2023 | McCleery et al. 2020 | Blouin et al. 2019 | MWDD H | MWDD HE | Gaia DR2 | Stilism | Holberg et al. 2016 | Limoges et al. 2015 | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 23 47 35.31 (0.06) | 23 47 35.31 (0.08) | 23 47 35.31 (0.08) | 23 47 35.31 | 23 47 35.13 (0.06) | 23 47 35.31 | 23 47 34.56 | |||||||||||
| Declination | 03 04 35.57 (0.04) | 03 04 35.45 (0.04) | 03 04 35.45 (0.04) | 03 04 35.57 | 03 04 31.87 (0.04) | 03 04 35.45 | 03 04 34.32 | |||||||||||
| Spectral type | DC | DC | DC | DC | DC | DC | DC | DC | DC | DC | DC | DC | ||||||
| Effective temperature | [K] | 4808.0 (14) | 4994.0 (36) | 4641.0 (13) | 4929.1 (18) | 4580.0 (50) | 5044.0 | 4733.0 | 4900.0 (47) | 4900.0 (47) | 5024.0 (25) | |||||||
| log(g) | [cgs] | 7.64 (0.007) | 7.78 (0.02) | 7.71 (0.003) | 7.74 (0.02) | 7.60 (0.03) | 7.81 | 7.59 | 8.00 (0) | 8.00 (0) | 7.78 (0.01) | |||||||
| Mass | [M☉] | 0.385 (0.005) | 0.466 (0.003) | 0.438 (0.002) | 0.355 (0.01) | 0.473 | 0.352 | 0.58 (0) | 0.58 (0.1) | 0.455 (0.009) | ||||||||
| log(Luminosity) | [L☉] | -4.08 | ||||||||||||||||
| Cooling age | [Gyr] | 7.5800 | 3.3090 (0.2) | 3.4290 | 2.9450 | 6.1700 | ||||||||||||
| log(H/He) | -1.02 | -1.2 | ||||||||||||||||
| 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] | 39.72 (0.06) | 39.72 (0.06) | 39.74 (0.08) | 39.74 (0.08) | 39.74 (0.08) | 39.74 (0.08) | 39.72 | 39.72 (0.06) | 39.74 (0.08) | ||||||||
| Distance | [pc] | 25.17 (0.04) | 25.18 (0.04) | 25.16 (0.05) | 25.16 (0.05) | 25.16 (0.05) | 25.16 (0.05) | 22.70 (4) | 22.70 (3) | 25.17 | 25.17 (0.04) | 25.16 (0.05) | ||||||
| Composition | H | He | He | H | H | |||||||||||||
| Proper motion (right ascension) | [mas/yr] | 169.9751055 (0.07) | 169.7836681 (0.2) | 169.975 (0.07) | 169.7836681 | |||||||||||||
| Proper motion (declination) | [mas/yr] | 231.4656028 (0.04) | 231.4553324 (0.08) | 231.466 (0.04) | 231.4553324 | |||||||||||||
| Variability | ||||||||||||||||||
| Magnetic | ||||||||||||||||||
| Bd | [MG] | |||||||||||||||||
| Infrared excess (disk) | ||||||||||||||||||
| Binarity | ||||||||||||||||||
| B magnitude | 17.80 | |||||||||||||||||
| V magnitude | 16.90 | |||||||||||||||||
| R magnitude | 16.20 | |||||||||||||||||
| I magnitude | ||||||||||||||||||
| J magnitude | 15.50 (0.006) | 15.62 (0.06) | 15.61 | 15.62 (0.06) | ||||||||||||||
| H magnitude | 15.71 (0.01) | 15.60 (0.1) | 15.60 | 15.60 (0.1) | ||||||||||||||
| K magnitude | 16.33 (0.04) | 15.87 | ||||||||||||||||
| u magnitude | 19.13 (0.02) | 19.14 | 19.13 (0.02) | 19.13 (0.02) | ||||||||||||||
| g magnitude | 17.25 | 17.16 (0.008) | 17.25 (0.005) | |||||||||||||||
| r magnitude | 16.52 | 16.52 (0.005) | 16.52 (0.005) | |||||||||||||||
| i magnitude | 16.25 | 16.28 (0.002) | 16.25 (0.005) | |||||||||||||||
| z magnitude | 16.16 | 16.21 (0.006) | 16.15 (0.007) | |||||||||||||||
| G magnitude | 16.57 (0.006) | 16.58 | 16.58 | 16.57 | 16.57 (0.003) | 16.58 | ||||||||||||
| BP magnitude | 17.04 (0.006) | 17.08 | 17.08 | |||||||||||||||
| RP magnitude | 15.94 (0.003) | 15.95 | 15.95 | |||||||||||||||
| Pan g magnitude | 17.16 (0.008) | 17.16 (0.006) | 17.16 (0.008) | |||||||||||||||
| Pan r magnitude | 16.52 (0.005) | 16.53 (0.003) | 16.52 (0.005) | |||||||||||||||
| Pan i magnitude | 16.28 (0.002) | 16.30 (0.0008) | 16.28 (0.002) | |||||||||||||||
| Pan z magnitude | 16.21 (0.006) | 16.22 (0.002) | 16.21 (0.006) | |||||||||||||||
| Pan y magnitude | 16.18 (0.005) | 16.21 (0.004) | 16.18 (0.005) | |||||||||||||||
| E(B-V) | 0.000 | |||||||||||||||||
* Constant surface field
Special notes:
Spectra
Controls
Normalize at:
Normalize by mean flux
Range:
x:
to
y:
to
Spectra available:
Spectra without link are available upon request
Absorption lines
Photometric filters
BVRI
ugriz
Photometric fit
