TIC 309302531

Transit candidateProbably noise

Rare & notable finds

Nothing rare: all 9 checks came back clear. What was checked →

Checked, nothing found (7)

Microlensing (rogue planet?) · Exocomet-shaped dip · Eclipse timing (third body?) · Eclipses changing depth · Pulsating star in an eclipsing binary · Extra dips outside the eclipses · Type of star

Checked 2026-10-11 16:25 on NVIDIA GeForce RTX 4070, using every TESS sector of this star. All results (.json)

Notes

Probably noise or an instrument effect. Found automatically by hunt.py in TESS sector 18 (flagged in 1 sector(s)). Detection score 397.2. 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: 2026-10-11 Planet check: Probably noise or an instrument effect 2026-10-10 Gaia hints at a hidden companion star (RUWE 1.7) 2026-10-10 Found by the automatic search in TESS sector 18

The signal

Type	Transit candidate
Status	Probably noise
Period (days)	2.04296
Period source	hunt.py on TESS QLP sector 18
Eclipse / dip depth	4.7%
Amplitude	3.0%
Data used	TESS sector 18 (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	~61.5 Earth radii (~5.48 Jupiter) - too big for a planet

The star (Gaia & TESS)

Distance (pc)	1,234 (~4,023 light years)
Temperature (Gaia)	9,416 K
Size (Gaia)	2.27 x the Sun
Mass (Gaia)	2.30 x the Sun
Luminosity (Gaia)	36.58 x the Sun
Colour, Gaia BP-RP	0.22
RUWE (Gaia)	1.72 - hints at a hidden companion star
Gaia G mag	11.70
TESS mag	11.62

Names & neighbours

TIC ID	309302531
Gaia DR3 ID	405482781472031360
SIMBAD name	TYC 3287-738-1 [*]
Nearest known variable	Gaia DR3 405483709184962688 (DSCT\|GDOR\|SXPHE), 126" away
RA (deg)	25.8386
Dec (deg)	49.1964
Look it up	SIMBAD · VSX · ESASky · ExoFOP

Record

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