TIC 252468415
Eclipsing binaryRare, already known
Rare & notable finds
Something unusual, worth a look - less certain than a significant find. How these checks work →
Already known: in SIMBAD as Gaia DR3 827111612020422528 (PM*); in the ATLAS variable-star catalogue (Heinze et al. 2018) as J150.4282+51.0926. The rare-find check confirms what is on record - still nice, but not a new discovery.
- Red-dwarf eclipsing binary notable
Two small, cool stars (3264 K) eclipsing each other. Red dwarfs are the most common stars, yet their sizes don't match the theory - every new eclipsing pair of them helps. - Extra dips outside the eclipses hint
1 dip(s) that don't belong to the eclipses (at BTJD 3355.04): a planet orbiting both stars (circumbinary, like Kepler-16b) makes dips at irregular times, or a third star.
Checked, nothing found (5)
Microlensing (rogue planet?) · Exocomet-shaped dip · Eclipse timing (third body?) · Pulsating star in an eclipsing binary · Type of star
Checked 2026-10-12 01:53 on NVIDIA GeForce RTX 4070, using every TESS sector of this star. All results (.json)
Notes
Rare, already known: Red-dwarf eclipsing binary; Extra dips outside the eclipses (in SIMBAD as Gaia DR3 827111612020422528 (PM*); in the ATLAS variable-star catalogue (Heinze et al. 2018) as J150.4282+51.0926).
Found automatically by hunt.py in TESS sector 21 (flagged in 1 sector(s)). Detection score 796.2.
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:
2026-10-12 Rare-find check: Extra dips outside the eclipses; Red-dwarf eclipsing binary
2026-10-11 Found by the automatic search in TESS sector 21
The signal
| Type | Eclipsing binary |
| Status | Rare, already known |
| Period (days) | 3.16631 |
| Period source | hunt.py on TESS QLP sector 21 |
| Eclipse / dip depth | 24.1% |
| Amplitude | 3.6% |
| Data used | TESS sector 21 (QLP) |
The star (Gaia & TESS)
| Distance (pc) | 83 (~272 light years) |
| Colour, Gaia BP-RP | 2.82 |
| RUWE (Gaia) | 1.17 - fits a single star |
| Gaia G mag | 14.08 |
| TESS mag | 12.8 |
Names & neighbours
| TIC ID | 252468415 |
| Gaia DR3 ID | 827111612020422528 |
| SIMBAD name | Gaia DR3 827111612020422528 [PM*] |
| Nearest known variable | none within 5' |
| RA (deg) | 150.429 |
| Dec (deg) | 51.0928 |
| Look it up | SIMBAD · VSX · ESASky · ExoFOP |
Record
| Found by | hunt.py (automatic) |
| Date | 2026-10-11 |
| Last update | 2026-10-12 |
Where it sits among the stars
ESA Gaia colour and true brightness. Grey: every Star Log candidate. Orange: this star.
Data files
- 10_rare_check.png 28 KB
- TIC252468415_s0021.fits 79 KB
- TIC252468415_s0021.png 36 KB
- rare_check.json 4 KB
- thumb.png 25 KB
- meta.json
