TIC 437938564
Transit candidateProbably known
Notes
WARNING: same period as the known variable V1823 Ori 82" away; the signal is probably its light leaking in.
Found automatically by hunt.py in TESS sector 33 (flagged in 1 sector(s)). Detection score 352.3.
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.
Updates:
2026-10-13 Gaia hints at a hidden companion star (RUWE 1.9)
2026-10-13 Found by the automatic search in TESS sector 33
The signal
| Type | Transit candidate |
| Status | Probably known |
| Period (days) | 1.27596 |
| Period source | hunt.py on TESS QLP sector 33 |
| Eclipse / dip depth | 1.2% |
| Amplitude | 1.4% |
| Data used | TESS sector 33 (QLP) |
The star (Gaia & TESS)
| Distance (pc) | 423 (~1,380 light years) |
| Temperature (Gaia) | 6,738 K |
| Size (Gaia) | 2.08 x the Sun |
| Mass (Gaia) | 1.55 x the Sun |
| Luminosity (Gaia) | 8.05 x the Sun |
| Colour, Gaia BP-RP | 0.54 |
| RUWE (Gaia) | 1.93 - hints at a hidden companion star |
| Gaia G mag | 10.55 |
| TESS mag | 10.27 |
Names & neighbours
| TIC ID | 437938564 |
| Gaia DR3 ID | 3369068043153369216 |
| SIMBAD name | HD 254507 [*] |
| Nearest known variable | V1823 Ori (EA, P = 2.5516 d), 82" away (same period!) |
| RA (deg) | 94.3222 |
| Dec (deg) | 15.7306 |
| Look it up | SIMBAD · VSX · ESASky · ExoFOP |
Record
| Found by | hunt.py (automatic) |
| Date | 2026-10-13 |
| Last update | 2026-10-13 |
Where it sits among the stars
ESA Gaia colour and true brightness. Grey: every Star Log candidate. Orange: this star.
Data files
- TIC437938564_s0033.fits 200 KB
- TIC437938564_s0033.png 72 KB
- thumb.png 90 KB
- meta.json
