TIC 417445627

Transit candidateRare, already known

Rare & notable finds

Something unusual, worth a look - less certain than a significant find. How these checks work →

Already known: in SIMBAD as HD 346889 (*); catalogued variable star nearby: Gaia DR3 1819255272214869376 (ROT), 65" away. The rare-find check confirms what is on record - still nice, but not a new discovery.

Lopsided transit hint
The start of the transit is deeper than the end: a dust tail (disintegrating planet), rings, a fast-spinning star, or a blend.

Checked, nothing found (7)

Microlensing (rogue planet?) · Exocomet-shaped dip · Habitable zone & size · Transit timing (TTV) · Transit duration (TDV) · Changing transit depth · Type of star

Checked 2026-10-11 16:31 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: Lopsided transit (in SIMBAD as HD 346889 (*); catalogued variable star nearby: Gaia DR3 1819255272214869376 (ROT), 65" away). Found automatically by hunt.py in TESS sector 14 (flagged in 1 sector(s)). Detection score 237.4. 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: Lopsided transit 2026-10-09 Found by the automatic search in TESS sector 14

The signal

Type	Transit candidate
Status	Rare, already known
Period (days)	0.801525
Period source	hunt.py on TESS QLP sector 14
Eclipse / dip depth	2.6%
Amplitude	3.2%
Data used	TESS sector 14 (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	~43.0 Earth radii (~3.84 Jupiter) - too big for a planet

The star (Gaia & TESS)

Distance (pc)	933 (~3,043 light years)
Temperature (Gaia)	7,783 K
Size (Gaia)	2.31 x the Sun
Mass (Gaia)	1.89 x the Sun
Luminosity (Gaia)	17.70 x the Sun
Colour, Gaia BP-RP	0.47
RUWE (Gaia)	1.03 - fits a single star
Gaia G mag	11.68
TESS mag	11.45

Names & neighbours

TIC ID	417445627
Gaia DR3 ID	1819254520602211200
SIMBAD name	HD 346889 [*]
Nearest known variable	Gaia DR3 1819255272214869376 (ROT), 65" away
RA (deg)	308.563
Dec (deg)	23.2877
Look it up	SIMBAD · VSX · ESASky · ExoFOP

Record

Found by	hunt.py (automatic)
Date	2026-10-09
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)