Mmastodon ScienceSpace first seen 1 d ago, last 1 d ago, peak #5

Comet 161P/Hartley-IRAS Nears Perihelion

Original: 2026-10-22 04:00:00 UTC (Delta: 2026-10-21) ☄️161P/HARTLEY-IRAS - Barycentric speed: 34.48 km/s (+0.07 km/s) - Perihelio

Astronomy watchers are tracking comet 161P/Hartley-IRAS as it approaches the inner solar system. The comet is moving at about 34.5 km/s, with perihelion expected in roughly 36 days. It currently sits at magnitude 15.1, visible from both hemispheres with a small or medium telescope under dark skies, in the constellation Delphinus.

Why now: Its upcoming perihelion passage makes it a current point of interest for amateur astronomers and comet observers.

161P/Hartley-IRASDelphinus

Open on mastodon →

Rank over time, top of the chart is #1. 4 snapshots from 1 d ago to 1 d ago.

Evidence

• 2026-10-22 04:00:00 UTC (Delta: 2026-10-21) ☄️161P/HARTLEY-IRAS - Barycentric speed: 34.48 km/s (+0.07 km/s) - Perihelion in: 36 days - Brightness (Mag): 15.13 (+0.05) - Visibility: Both hemispheres | Small/medium telescope | Dark sky - Constellation: Delphinus 🌎 Relative to… · wawn · 1

API: https://socialmediatrends-api.osmike.com/v1/trends/3204476