TIC 440374102
Eclipsing binaryProbably known
Notes
WARNING: same period as the known variable Gaia DR3 198131071909400192 33" away; the signal is probably its light leaking in.
Found automatically by hunt.py in TESS sector 19 (flagged in 1 sector(s)). Detection score 256.3.
Not in VSX, ASAS-SN or ZTF variable catalogues at the time of the search; not in Gaia DR3's variable lists.
Unchecked by hand yet: verify the period, nearby stars and a wider catalogue search.
The signal
| Type | Eclipsing binary |
| Status | Probably known |
| Period (days) | 0.976986 |
| Period source | hunt.py on TESS QLP sector 19 |
| Eclipse / dip depth | 7.0% |
| Amplitude | 7.8% |
| Data used | TESS sector 19 (QLP) |
The star (Gaia & TESS)
| Distance (pc) | 3,775 (~12,314 light years) |
| Temperature (Gaia) | 4,652 K |
| Size (Gaia) | 9.66 x the Sun |
| Mass (Gaia) | 2.50 x the Sun |
| Luminosity (Gaia) | 41.30 x the Sun |
| Colour, Gaia BP-RP | 1.52 |
| RUWE (Gaia) | 0.99 - fits a single star |
| Gaia G mag | 13.90 |
| TESS mag | 13.14 |
Names & neighbours
| TIC ID | 440374102 |
| Gaia DR3 ID | 198130315995152512 |
| SIMBAD name | not in SIMBAD |
| Nearest known variable | Gaia DR3 198131071909400192 (E, P = 0.97691 d), 33" away (same period!) |
| RA (deg) | 89.503 |
| Dec (deg) | 47.6513 |
| Look it up | SIMBAD · VSX · ESASky · ExoFOP |
Record
| Found by | hunt.py (automatic) |
| Date | 2026-10-11 |
Where it sits among the stars
ESA Gaia colour and true brightness. Grey: every Star Log candidate. Orange: this star.
Data files
- TIC440374102_s0019.fits 73 KB
- TIC440374102_s0019.png 45 KB
- thumb.png 47 KB
- meta.json
