Observation by Alan Thomas: Pismis-Moreno 1 Open Cluster in Cepheus

Uploaded by

Alan Thomas

Observer

Alan Thomas

Observed

2025 Aug 27 - 00:13

Uploaded

2025 Aug 27 - 10:43

Objects

Pismis Moreno 1

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Constellation

Cepheus

Field centre

RA: 22^h18^m
Dec: +63°13'
Position angle: +177°53'

Field size

0°29' × 0°30'

Equipment

PlaneWave 61cm f/6.5 Corrected Dall-Kirkham Astrograph
FLI ProLine KAF-16803 CCD camera
10Micron GM4000 robotic German equatorial mount

Exposure

60sec.

Location

Observatorio del Teide, Tenerife

Target name

Pismis-Moreno 1 Open Cluster in Cepheus

Title

Pismis-Moreno 1 Open Cluster in Cepheus

About this image

This seldom observed open cluster in Cepheus is the Deep Sky Section's August 'Object of Interest'. The cluster is embedded in emission nebula Sharpless 2-140. It was discovered by Marie Paris Pismis (who has an interesting biography - her daughter, grand-daughter and son-in-law became astronomers) and Marco Moreno-Corral.

This image, using the PIRATE (Physics Innovations Robotic Astronomical Telescope Explorer) on Tenerife, shows the cluster members well, with faint signs of nebulosity also visible. The nebula is being excited by the brighter of the close pair (centre-left) HD 211880.

The cluster lies at a distance of about 3,000ly. Date of discovery unknown (to me).

Files associated with this observation

Pimis Moreno 1 PIRATE v3image-jpeg-i.jpg (2.4 MB)

Like this image

Callum Potter, Dominic Ford

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