---
title: "IC 3645"
url: "https://spacecatalog.org/object/ic-3645"
release: "DR1"
licence: "CC-BY-SA-4.0"
citation: "SpaceCatalog. IC 3645 [catalogue entry]. Data release DR1 (2026-08-21). https://spacecatalog.org/object/ic-3645"
---

# IC 3645

IC 3645 is a [star](https://spacecatalog.org/stars) in the constellation [Coma Berenices](https://spacecatalog.org/constellation/coma-berenices). Other catalogues list it as SDSS J124037.60+263228.9.

## At a glance

- **WHAT IT IS:** Star
- **WHERE TO LOOK:** [Coma Berenices](https://spacecatalog.org/constellation/coma-berenices) — The patch of sky it sits in, as seen from Earth.

## Properties

| Quantity | Value |
| --- | --- |
| CLASS | Star |
| CONSTELLATION | Coma Berenices |
| RIGHT ASCENSION (J2000) | 12h 40m 37.6s |
| DECLINATION (J2000) | +26° 32′ 28.9″ |

## Catalogue data

### OTHER NAMES AND NUMBERS

The identifiers other catalogues file this object under, for anyone joining this data to theirs.

| Field | Value |
| --- | --- |
| OpenNGC type code | \* |

## Also known as

- SDSS: SDSS J124037.60+263228.9

## Source

[OpenNGC](https://github.com/mattiaverga/OpenNGC) — CC-BY-SA-4.0

The producer asks: OpenNGC, Mattia Verga (github.com/mattiaverga/OpenNGC). Fields derived from it stay under CC BY-SA 4.0.

How this was made: https://spacecatalog.org/methods#source-openngc

## Cite this page

SpaceCatalog. IC 3645 \[catalogue entry\]. Data release DR1 (2026-08-21). https://spacecatalog.org/object/ic-3645

```bibtex
@misc{spacecatalog_ic-3645,
  author       = {{SpaceCatalog}},
  title        = {{IC 3645}},
  howpublished = {SpaceCatalog, data release DR1 (2026-08-21)},
  year         = {2026},
  url          = {https://spacecatalog.org/object/ic-3645},
  note         = {Catalogue entry, data release DR1 (2026-08-21). Values from OpenNGC.}
}
```

OpenNGC — CC-BY-SA-4.0

Acknowledgement the producer asks for: OpenNGC, Mattia Verga (github.com/mattiaverga/OpenNGC). Fields derived from it stay under CC BY-SA 4.0.

The page itself, with its pictures, the sky map and the observing tools: https://spacecatalog.org/object/ic-3645