TIC 39698878

Transit candidateProbably noise

Rare & notable finds

Nothing rare: all 8 checks came back clear. What was checked →

Checked, nothing found (6)

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

Checked 2026-10-11 16:23 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 20 (flagged in 1 sector(s)). Detection score 495.4. 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 Found by the automatic search in TESS sector 20

The signal

Type	Transit candidate
Status	Probably noise
Period (days)	1.35463
Period source	hunt.py on TESS QLP sector 20
Eclipse / dip depth	4.2%
Amplitude	3.7%
Data used	TESS sector 20 (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	~53.4 Earth radii (~4.76 Jupiter) - too big for a planet

The star (Gaia & TESS)

Distance (pc)	707 (~2,305 light years)
Temperature (Gaia)	6,436 K
Size (Gaia)	2.36 x the Sun
Mass (Gaia)	1.56 x the Sun
Luminosity (Gaia)	8.61 x the Sun
Colour, Gaia BP-RP	0.67
RUWE (Gaia)	0.98 - fits a single star
Radial velocity (Gaia)	speed changes by 203 km/s - likely an orbiting pair
Gaia G mag	11.66
TESS mag	11.31

Names & neighbours

TIC ID	39698878
Gaia DR3 ID	929369251420050432
SIMBAD name	TYC 3408-414-1 [*]
Nearest known variable	none within 5'
RA (deg)	121.132
Dec (deg)	45.6574
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)