TIC 21833149
Eclipsing binaryProbably known
Notes
WARNING: same period as the known variable CSS_J170755.2+314016 49" away; the signal is probably its light leaking in.
Found automatically by hunt.py in TESS sector 25 (flagged in 1 sector(s)). Detection score 113.0.
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) | 1.69389 |
| Period source | hunt.py on TESS QLP sector 25 |
| Eclipse / dip depth | 4.8% |
| Amplitude | 6.7% |
| Data used | TESS sector 25 (QLP) |
The star (Gaia & TESS)
| Distance (pc) | 588 (~1,918 light years) |
| Temperature (Gaia) | 5,468 K |
| Size (Gaia) | 0.93 x the Sun |
| Mass (Gaia) | 0.89 x the Sun |
| Luminosity (Gaia) | 0.70 x the Sun |
| Colour, Gaia BP-RP | 0.93 |
| RUWE (Gaia) | 0.98 - fits a single star |
| Gaia G mag | 13.97 |
| TESS mag | 13.49 |
Names & neighbours
| TIC ID | 21833149 |
| Gaia DR3 ID | 1310195102385283584 |
| SIMBAD name | not in SIMBAD |
| Nearest known variable | CSS_J170755.2+314016 (EA, P = 1.6942 d), 49" away (same period!) |
| RA (deg) | 256.99 |
| Dec (deg) | 31.6603 |
| 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
- TIC21833149_s0025.fits 73 KB
- TIC21833149_s0025.png 42 KB
- thumb.png 52 KB
- meta.json
