The following is a provisional observing list with respect to my continuing color-contrast-doubles urban-astronomy interest. Because of the deteriorating weather situation (at my local op) and the advancing first quarter moon, I've posted it before completing a review of the entire target list, so others interested in looking at a few targets can do so.
For the Mon through Cnc frame, stars with color contrast (plus bet Mon) are:
eps Mon (yellow-tint blue)
bet Mon (double white)
15 Mon (white-tint yellow)
STF1019(white-blue)
Herschel 3945 (yellow-blue)
STF1183 (white green-blue-shade)
zet Mon (yellow-grey)
The appended observing list is divided into two parts. Part I is a reviewed target list by ascending RA that begins east of Ori. Part II is the remainder of my raw target list that I have not yet personally reviewed. Finder and object info is included in the detail list. The entries start with SAO numbers because that is what I use in my GOTO hand-controller.
This observing list was developed by reviewing color contrast double lists such as Mullaney, Haas and Belmont and then preparing a short list of candidate targets. The candidate list was then reviewed using a 4 1/4 inch short GOTO reflector from an urban light polluted site to determine the practicality of seeing the objects from an urban setting.
This list was also expanded to include three prominent carbon stars in this observing frame. Because the portion of the night sky west from Orion is dominated by anti-spinward Orion-Cygnus Arm white OB stars, I wanted to fill-in with some more color.
Clear Skies - Kurt
I. FILTER OBJECTS BY ASCENDING RA - REVIEWED (WEST ORI TO MON)
ID SAO113810
Constellation Mon
AltNames -
CommentsSec eps Mon, 8 Mon, 4.4v, 6.5v, 12.1sep, 29pa, 2004,Haas:showcase yellow-lilac,A5IV,-
RA 062346
Dec +043534
CommentsMisc -
Observation note Showcase pair with contrast per Haas representation. A small gap with white primary and light blue fainter secondary. Very pleasing. Fairly close gap at 40x; wide pair at 100x. Nice pair.
ID SAO152427
Constellation Ori
AltNames BL Ori
CommentsSec 6.2v Red Carbon star, Mullaney - Single
RA 062528
Dec +144319
CommentsMisc -
Observation note -
ID SAO95659
Constellation Mon
AltNames bet Mon; 11 Mon; Herschel's Wonder Star
CommentsSec 4.7v,5.2v,7.3sep,132pa,2000,Mullaney:blue-blue-blue,0.148kpc,B2
RA 062849
Dec -070158
CommentsMisc -
Observation note At 40x appears as single star. At 100x, appears as an easy, split, two nearly equal white stars with a tiny, but distinct gap. A nice warmup for a start of this run with no color contrast.
ID NGC2244
Constellation Mon
AltNames Rosetta Neb Open Cluster
CommentsSec -
RA 063224
Dec +045200
CommentsMisc -
Observation note Showcase cluster listed for completeness
ID SAO114258
Constellation Mon
AltNames 15 Mon; STF950
CommentsSec 4.6v,9.9vAa-C,16.6sep,14pa,2002,Haas:triple-lemon-white-with-silver,-,-
RA 064059
Dec +095344
CommentsMisc At base of Christmas Tree Cluster FG 9.0v,10v,39.5sep,263pa,2002,-,-,-
Observation note Two faint stars to the north of 15 Mon at the base of the Christmas Tree Cluster. 15 Mon is white. All three detectable at 25x. At 100x, lemon color of beta barely detectable. In 4.25 inch, thrid faint C star is barely detectable. Faint double to the east of 15 Mon and the triangular corner asterism at the east base of the Christmas Tree is STF952. Struve designations not consistent with Washington Double Star. Is a complex multiple system with two other embedded systems. That it is a complex system is its main attraction. STF951, also in cluster is a similar complex multiple star system.
ID NGC2264
Constellation Mon
AltNames Christmas Tree Cluster
CommentsSec -
RA 064106
Dec +095300
CommentsMisc -
Observation note Showcase cluster listed for completeness
ID SAO152363
Constellation Mon
AltNames STF1019
CommentsSec 6.5v,9.6vAC,38.5sep,295pa,2004,Haas:whte-blue-triple,-,-
RA 070550
Dec -103940
CommentsMisc Triple with AB 6.5v-10.1v,6.4sep
Observation note Faint white primary with nice blue fainter secondary. Tertiary not visible. Nice contrast on the primary.
ID SAO152427
Constellation CMa
AltNames W CMa
CommentsSec 6.7v, carbon star
RA 070803
Dec -115522
CommentsMisc -
Observation note -
ID SAO173349
Constellation Cma
AltNames 145 Cma, Herschel 3945
CommentsSec 4.2v, 6.8v,26.6sep,-,-,Showcase yellow-blue pair,-,-
RA 0716.6
Dec -2319
CommentsMisc Winter Albireo
Observation note Showcase case - exactly as the name implies.
ID SAO115756
Constellation CMi
AltNames alf CMi, 10 CMi
CommentsSec 0.4v,11.7v,148.4sep,p17a,1984,Smyth:yellow-white-several-small-stars,-,F5IV
RA 073918
Dec +051330
CommentsMisc -
Observation note Mullaney and Haas do not list Procyon as double - just a pretty star field per Mullaney. As Mullaney notes, this is a pretty field-of-view that we often do not take the time to appreciate, since it is an alignment star. But the Washington Double Star catalogue shows this as a complex mulitple star system. The more refined CCDM shows Procyon as a triple. CCDM07393+0514.
ID SAO135505
Constellation Mon
AltNames STF1183
CommentsSec 6.2v,7.8v,30.6sep,328pa,2004,Haas:lemon-white-with-green-white,-,B9.5IV
RA 080627
Dec -091442
CommentsMisc -
Observation note Showcase - nice bright white green-blue tint wide gap pair. Good color contrast.
ID SAO135551
Constellation Mon
AltNames zet Mon; STF1190
CommentsSec 4.4v,10.1vAB,33sep,105pa,1998,Smyth:yellow-gray-blue,-;G2I
RA 080836
Dec -025902
CommentsMisc Triple AC 4.4,9.7v,64.7sep,247pa,2002
Observation note Secondary too faint to give good color contrast, but is pleasant system, easy to find.
II. RAW TARGT LIST - IN PROCESS OF REVIEW AND CULLING - CANCER
ID SAO97645
Constellation Cnc
AltNames zet1 Cnc; 16 Cnc; STF1196AB
CommentsSec 5.6v,6.6v,0.98sep,52pa,2000,Mullaney:triple-yellow-yellow-yellow,-,F7V
RA 081213
Dec +173852
CommentsMisc West of M44
Observation note
ID SAO97646
Constellation Cnc
AltNames zet2 Cnc; 16 Cnc; STF1196AB
CommentsSec 5.6v,6.6v,0.98sep,52pa,2000,Mullaney:triple-yellow-yellow-yellow,-,F8V
RA 081213
Dec +173852
CommentsMisc West of M44
Observation note
ID SAO97881
Constellation Cnc
AltNames tet Cnc; 31 Cnc
CommentsSec 5.6v,10v,63sep,61pa,2000,-,0.151kpc,K5III
RA 083136
Dec +180540
CommentsMisc Near M44
Observation note
ID SAO98013
Constellation Cnc
AltNames -
CommentsSec 6.9v,11.9v1.4sep,292pa,2000,Belmont:yellow-orange-white-triple,-,Am
RA 083956
Dec +193311
CommentsMisc In center of M44
Observation note
ID SAO98020
Constellation Cnc
AltNames -
CommentsSec 6.5v,9v,20.5sep,24pa,2000,Belmont:orange-white-quad,-,F2III
RA 084021
Dec +194111
CommentsMisc In center of M44
Observation note
ID SAO98021
Constellation Cnc
AltNames STF1245
CommentsSec 6.0v,7.2v,10sep,25pa,2004,Haas:yellow-yellow-olive,-,F8V
RA 084022
Dec +194012
CommentsMisc In center of M44
Observation note
ID M44
Constellation Cnc
AltNames -
CommentsSec -
RA 084024
Dec +194000
CommentsMisc -
Observation note
ID SAO80416
Constellation Cnc
AltNames iot Cnc; 48 Cnc; Spring Albireo; STF1536AB
CommentsSec 4.2v,6.6v,30.5sep,307pa,2000,Belmont:yellow-blue,0.1kpc,G8Iab
RA 084642
Dec +284536
CommentsMisc -
Observation note
ID SAO80425
Constellation Cnc
AltNames gam Cnc; 43 Cnc; STF1967; Asellus Borealis
CommentsSec 4.7v,8.1v,106.3sep,66pa,2000,-,0.050kpc,A1IV
RA 084715
Dec +213235
CommentsMisc Near M44
Observation note
ID SAO61125
Constellation Cnc
AltNames 57 Cnc; Struve (STF)1291
CommentsSec 6.1v,6.6v,1.4sep,316pa,2000,Mullaney:yellow-yellow,0.112kpc,G7III
RA 085415
Dec +303446
CommentsMisc N.e. of iot Cnc
Observation note
ID SAO98230
Constellation Cnc
AltNames X Cnc; AAVSO0849+17
CommentsSec 6.2v,Mullaney:Stellar ruby
RA 085523
Dec +171353
CommentsMisc Red carbon variable
Observation note
ID SAO98267
Constellation Cnc
AltNames
CommentsSec 4.3v,11.8v,10.6sep,321pa,Haas:gold-with-ghost,-,A5
RA 085829
Dec +115128
CommentsMisc
Observation note
ID SAO61177
Constellation Cnc
AltNames sig01 Cnc
CommentsSec 5.7v,10.2vAC,77sep,24pa,2003,Haas:triple-yellow-gray-gray,-,A8
RA 085933
Dec +322507
CommentsMisc
Observation note
ID SAO61202
Constellation Cnc
AltNames sig04 Cnc; 66 Cnc
CommentsSec 6.0v,8.6v,4.5sep,134pa,2000,Haas:peach-white-with-blue,-,A2V
RA 090124
Dec +321509
CommentsMisc
Observation note
ID SAO80585
Constellation Cnc
AltNames 67 Cnc
CommentsSec 6.1v,9.2v,103.6sep,329pa,Haas:super-wide-yellow-scarlet,-,A8V
RA 090149
Dec +275410
CommentsMisc
Observation note
==================
This post is a continuation of my posts that concerning on my current observing focus: "after-work urban-astronomy". Urban astronomy focuses on using easily set up GOTO scopes across for seasons to view astronomical objects from urban light-polluted skies. As opposed to deep sky object emphasis, urban astronomy concerns bright objects visible with small apetures e.g. - open clusters, double stars, planetary and solar system objects. Having family, friend and work obligations like the rest of you, I will try to limit referenced targets to those observable prior to local midnight.