The image consists of 113 15 second subs on the RASA 11 using the QHY168C & astronomik CLS LPR filter. They form what looks like an "M" on one side. I was testing for tilt & collimation. You can catch this spectacular star cluster pair with just your eyes on a dark night.The pair is easy to find. In this week's Astronomy magazine podcast, we'll help you observe the constellation Triangulum, the Double Cluster in Perseus, and spiral galaxy NGC 891 in your autumn night sky. Comments Double the viewing pleasure in one field of view. Find: During my "winter observations" in February 2017, I tried to find the double cluster NGC 884/869 in Perseus. The Double Cluster is a must for a late autumn evening sweep of the night sky, with even a small pair of binoculars. Find/Identify. Magnitudes are given without a decimal point, e.g. I was able to find the open clusters, but using my binoculars, I was not able to tell which of the two clusters I was viewing, or even both. From Redmond , Perseus Double Cluster is visible all night because it is circumpolar.It will be highest in the sky at 02:34, 80° above your northern horizon. The Double Cluster in Perseus, NGC869 and 884. The brightest star Mirfak is part of this cluster. The Perseus double cluster is within the boundaries of the constellation Perseus. Double Cluster in Perseus - posted in Experienced Deep Sky Imaging: I took the image below to check the general health of the collimation of the RASA. Photo by Trevor Jones. NGC 869 & NCG 884 The Double Cluster in Perseus These open star clusters lie at a distance of 7500 light years Imaged using Skywatcher Equinox 80 Pro ED and Altair Hypercam 183C Pro A total of 20 x 120 second and 30 x 300 second exposures Perseus Cluster (NGC 884) January 25, 2018. To find the Double Cluster, first spot the five-star constellation of Cassiopeia high in the northeast, the next clear evening. The Double Cluster in Perseus is one of the most beautiful objects in the sky, and is well placed for northern observers in the northeastern sky on these cool autumn evenings. I think the best way to find the Perseus double cluster is to use the … This pair of open clusters which can be viewed in the same field of view can just be seen with the naked eye in good conditions. How to Find It Between Cassiopeia and the head of Perseus. The sheer number of stars in this region of the sky really help. NGC 869 and NGC 884 together are beautiful to look at, especially if you use binoculars or a telescope. The same was true for the 100P telescope. The first is the Alpha Persei star cluster. Cassiopeia is a good pointer to the object as shown in this diagram. A map of the star field. 67 is to be interpreted as magnitude 6.7. The Double Cluster in Perseus. At dusk, it will become visible around 19:54 (PDT), 33° above your north-eastern horizon. The final cluster in Perseus is called Messier 34. 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