TIC 166670631

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 BD+36 2429 (*); catalogued variable star nearby: Gaia DR3 1483237994710974336 (ROT), 197" away. The rare-find check confirms what is on record - still nice, but not a new discovery.

Hot Neptune desert notable
A 7.1 Earth-radius planet on a 1.17-day orbit sits in the 'hot Neptune desert', where very few planets are known (if the signal is a real planet - it hasn't passed the planet check).
Lopsided transit hint
The end of the transit is deeper than the start: a dust tail (disintegrating planet), rings, a fast-spinning star, or a blend.

Checked, nothing found (9)

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

Checked 2026-10-11 17:11 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: Hot Neptune desert; Lopsided transit (in SIMBAD as BD+36 2429 (*); catalogued variable star nearby: Gaia DR3 1483237994710974336 (ROT), 197" away). Found automatically by hunt.py in TESS sector 23 (flagged in 1 sector(s)). Detection score 45.9. 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; Hot Neptune desert 2026-10-11 Found by the automatic search in TESS sector 23

The signal

Type	Transit candidate
Status	Rare, already known
Period (days)	1.16977
Period source	hunt.py on TESS QLP sector 23
Eclipse / dip depth	0.2%
Amplitude	0.2%
Data used	TESS sector 23 (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	~7.0 Earth radii (~0.63 Jupiter)

The star (Gaia & TESS)

Distance (pc)	238 (~776 light years)
Temperature (Gaia)	6,376 K
Size (Gaia)	1.38 x the Sun
Mass (Gaia)	1.23 x the Sun
Luminosity (Gaia)	2.81 x the Sun
Colour, Gaia BP-RP	0.63
RUWE (Gaia)	1.20 - fits a single star
Gaia G mag	10.51
TESS mag	10.17

Names & neighbours

TIC ID	166670631
Gaia DR3 ID	1483236895199373952
SIMBAD name	BD+36 2429 [*]
Nearest known variable	Gaia DR3 1483237994710974336 (ROT), 197" away
RA (deg)	209.446
Dec (deg)	35.8112
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)