Ciel Extreme
September 19th, 2014, 02:32 PM
1366
I ran across this asterism or cluster on July 25, 1992 while observing with a C-8 in Robertville, New Brunswick. I misidentified the object as NGC7142 (which is nearby). Coordinates are RA 21 39 20, Dec +65 49. Plotted as four stars in the first edition of Uranometria 2000.0, as well as the all-sky edition, one of the stars being the variable V434 in Cepheus. DSS image above is 15'x15'. When I checked SIMBAD, it only gave a long list of single stars, carbon stars, eclipsing binaries... no clusters. I wrote an article about this group in Amateur Astronomy magazine (issue 52... 53... 54? I can’t remember which) called “My Star Cluster”. Shortly after, I received an email from a reader stating that the group was called Pothier 4. Entering “Pothier 4” in the DSS search engine comes up empty. Since Yann is a member of this group, perhaps he could identify this grouping as one that he’s identified previously? Is this group catalogued in DSH?
I ran across this asterism or cluster on July 25, 1992 while observing with a C-8 in Robertville, New Brunswick. I misidentified the object as NGC7142 (which is nearby). Coordinates are RA 21 39 20, Dec +65 49. Plotted as four stars in the first edition of Uranometria 2000.0, as well as the all-sky edition, one of the stars being the variable V434 in Cepheus. DSS image above is 15'x15'. When I checked SIMBAD, it only gave a long list of single stars, carbon stars, eclipsing binaries... no clusters. I wrote an article about this group in Amateur Astronomy magazine (issue 52... 53... 54? I can’t remember which) called “My Star Cluster”. Shortly after, I received an email from a reader stating that the group was called Pothier 4. Entering “Pothier 4” in the DSS search engine comes up empty. Since Yann is a member of this group, perhaps he could identify this grouping as one that he’s identified previously? Is this group catalogued in DSH?