TIC 237018733

Transit candidateRare, already known

Rare & notable finds

Something genuinely unusual turned up. Treat it as a lead: every one of these has ordinary explanations too, listed with each. How these checks work →

Already known: in SIMBAD as UCAC4 755-060447 (SB*); catalogued variable star nearby: ZTF J202519.14+605405.1 (EW, P = 0.29622 d), 216" away. The rare-find check confirms what is on record - still nice, but not a new discovery.

Irregular deep dimming significant
4 deep dips at irregular times, depths from 0.9% to 3.3%. Not periodic and not a young star - like Boyajian's star ('Tabby's star'), one of the strangest stars known.

Checked, nothing found (11)

Microlensing (rogue planet?) · Exocomet-shaped dip · Habitable zone & size · Transit timing (TTV) · Transit duration (TDV) · Changing transit depth · Lopsided transit · Dimming beside the transit · Trojan companions (L4/L5) · Self-lensing binary · Type of star

Checked 2026-10-11 16:42 on NVIDIA GeForce RTX 4070, using every TESS sector of this star. All results (.json)

Notes

Probably noise or an instrument effect. Rare, already known: Irregular deep dimming (in SIMBAD as UCAC4 755-060447 (SB*); catalogued variable star nearby: ZTF J202519.14+605405.1 (EW, P = 0.29622 d), 216" away). NOTE: SIMBAD already lists this star (UCAC4 755-060447) as type SB*, so it may be known after all - check the SIMBAD references. Found automatically by hunt.py in TESS sector 24 (flagged in 2 sector(s)). Detection score 172.4. 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: 2026-10-11 Planet check: Probably noise or an instrument effect 2026-10-11 Rare-find check: Irregular deep dimming 2026-10-11 Found by the automatic search in TESS sector 24

The signal

Type	Transit candidate
Status	Rare, already known
Period (days)	3.05073
Period source	hunt.py on TESS QLP sector 24
Eclipse / dip depth	2.0%
Amplitude	1.0%
Data used	TESS sector 24 (QLP)

Planet check

Verdict	Probably noise or an instrument effect ExoFOP check plot all test results light curve data
Size if it's a planet	~47.7 Earth radii (~4.26 Jupiter) - too big for a planet

The star (Gaia & TESS)

Distance (pc)	1,028 (~3,352 light years)
Temperature (Gaia)	6,628 K
Size (Gaia)	2.97 x the Sun
Mass (Gaia)	1.79 x the Sun
Luminosity (Gaia)	15.36 x the Sun
Colour, Gaia BP-RP	0.81
RUWE (Gaia)	1.02 - fits a single star
Radial velocity (Gaia)	speed changes by 157 km/s - likely an orbiting pair
Gaia G mag	12.19
TESS mag	11.77

Names & neighbours

TIC ID	237018733
Gaia DR3 ID	2242828112340371968
SIMBAD name	UCAC4 755-060447 [SB*]
Nearest known variable	ZTF J202519.14+605405.1 (EW, P = 0.29622 d), 216" away
RA (deg)	306.422
Dec (deg)	60.8616
Look it up	SIMBAD · VSX · ESASky · ExoFOP

Record

Found by	hunt.py (automatic)
Date	2026-10-11
Last update	2026-10-11

Where it sits among the stars

ESA Gaia colour and true brightness. Grey: every Star Log candidate. Orange: this star.

How to read this diagram →

Data files

Download everything (.zip)