RA 3h 46m · Dec +24° 11′

5′

The most famous open cluster in the sky, recognised in cultures worldwide since prehistory. Long exposures reveal the associated blue reflection nebulosity — the cluster is currently passing through a dust cloud, not the remnant of its birth. A wide-field mosaic captures the full extent of the surrounding nebulosity.

Open cluster

Pleiades

M 45 · Taurus

These photons are ~444 years old

UV/IRUV/IR-cut. Blocks ultraviolet and infrared so refractor optics stay in focus across the visible band.

ZWO Seestar S50ZWO Seestar S50Aperture 50mm · Focal length 250mm · f/5 · Apo triplet with ED element · Sony IMX462 colour CMOS sensor (1920 x 1080, 2.1MP)…View equipment →

⧉ 5 versions of this capture — pick one to see its image and log

Date: 12/12/2025
Location: 53.5481° N, 1.4616° W
Integration: 17m (104 × 10s)
Software: ZWO Seestar app
Notes: ·
Total effort: 1h 25m over 1 night
Moon: 🌗Last quarter, 52% lit
Plate solve
Centre RA: 3h 46m 28.2s
Centre Dec: +24° 11′ 10″
Field: 42.8′ × 76.1′
Pixel scale: 2.38″/px
Orientation: 108.0° E of N
Hemisphere: Northern

Also in this frame

M45IC 1990NGC 1432IC 349

Catalogued objects inside the plate-solved field, nearest the centre first. Highlighted names have their own photo here.

TelescopeZWO Seestar S50

CameraZWO Seestar S50 Camera

RigFamily Holiday Rig

Where to find it

Finder chart

Star field and catalogued objects inside the plate-solved field, oriented to the solve. Fully offline, from the bundled star and deep-sky catalogues.

Interactive sky chart centred on 3 46 28.2 +24 11 10. Drag to pan, scroll to zoom, click a star or object to identify it. Zoom in to the plate-solved field for the DSS survey photo; zoom out for constellation figures and neighbouring catalogue objects. Fully self-hosted: the star and deep-sky catalogues and the survey image are all served from this site, so nothing external loads. Imagery: DSS2 colour (STScI / POSS-II). Constellation figures © Dominic Ford (GPLv3).

Captured from · Barnsley, UK

53.5481° N, 1.4616° W · view on OpenStreetMap ↗ · Place data © GeoNames (CC BY)

Frequently asked questions

What kind of object is M 45?

M 45 is an open cluster.

Which constellation is M 45 in?

M 45 lies in the constellation Taurus.

How far away is M 45?

The light in this image left M 45 roughly ~444 years ago, so that is how far back in time you are seeing it.

What are the coordinates of M 45?

M 45 sits at right ascension 03h 46m 28s and declination +24° 11′ 10″ (J2000).

When is the best time to photograph M 45?

M 45 rides highest in the evening sky around November, reaching about 61° above the horizon from around 54°N.

What else is in this frame?

The plate-solved field also contains IC 1990, NGC 1432, and IC 349.

What equipment was used to photograph M 45?

This image of M 45 was captured with ZWO Seestar S50 and ZWO Seestar S50 Camera.

How much exposure time went into this image?

This image of M 45 represents 17m (104 × 10s) + 17m (102 x 10s) of total integration time.

Pleiades

Where to find it

Frequently asked questions

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