TIC 1643990
Single dip / odd eventProbably known
Notes
NOTE: SIMBAD already lists this star (TYC 4872-892-1) as type SB*, so it may be known after all - check the SIMBAD references.
Found automatically by hunt.py in TESS sector 8 (flagged in 1 sector(s)). Detection score 528.6.
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 | Single dip / odd event |
| Status | Probably known |
| Period source | hunt.py on TESS QLP sector 8 |
| Amplitude | 0.7% |
| Data used | TESS sector 8 (QLP) |
The star (Gaia & TESS)
| Distance (pc) | 354 (~1,155 light years) |
| Temperature (Gaia) | 5,608 K |
| Size (Gaia) | 1.15 x the Sun |
| Mass (Gaia) | 0.91 x the Sun |
| Luminosity (Gaia) | 1.17 x the Sun |
| Colour, Gaia BP-RP | 0.83 |
| RUWE (Gaia) | 0.99 - fits a single star |
| Radial velocity (Gaia) | speed changes by 93 km/s - likely an orbiting pair |
| Gaia G mag | 12.24 |
| TESS mag | 11.81 |
Names & neighbours
| TIC ID | 1643990 |
| Gaia DR3 ID | 5762102560669048704 |
| SIMBAD name | TYC 4872-892-1 [SB*], 1.6" away |
| Nearest known variable | Gaia DR3 5762105073225214464 (ROT), 196" away |
| RA (deg) | 131.459 |
| Dec (deg) | -3.78399 |
| Look it up | SIMBAD · VSX · ESASky · ExoFOP |
Record
| Found by | hunt.py (automatic) |
| Date | 2026-10-03 |
Where it sits among the stars
ESA Gaia colour and true brightness. Grey: every Star Log candidate. Orange: this star.
Data files
- TIC1643990_s0008.fits 62 KB
- TIC1643990_s0008.png 35 KB
- thumb.png 27 KB
- meta.json
