Charts 111 and 112 are effectively the only low Leo charts, as nothing I observed appears on Chart 132 and 131 that does not appear here.
eg 3434: 2'.1 x 1'.9: Vis. 12.8; SB 12.4: Viewed initially at 60x and 120x, the galaxy was round and had a bright centre. At 136x a very faint star is immediately N. A mag. 8.5 star is always in view. 272x shows a stellar core, then a larger bright central area, and finally the fainter surrounding envelope.
eg 3495: 3'.8 x 1': Vis. 11.8; SB 13.6: Located at 60x. At 100x and up to 136x, views of this remarkable object are hampered a very bright star, 58, and mag. 5.5. The galaxy is very elongated with a bright oval centre. At 187x and 250x, with star 58 out of view, I saw a very fine edge-on galaxy, especially with a.v. Nice!
eg 3509: 2'.1 x 1': Vis. 12.7; SB 13.4: The galaxy is visible at 100x, but is not large. 136x shows it as oval, using a.v. 187x gives the best view. The oval is now pretty large, with a wide middle. A very faint star is F (?). At 200x the galaxy begins to fade. In photos this is a highly irregular galaxy, and I wouldn't mind another look with my upgraded eyepieces.
eg 3521: 11'.2 x 5'.5: Vis. 9; SB 13.3: Shockingly bright at 60x, it is also very large. I enjoyed excellent views up to 250x. The galaxy appears as a very elongated oval, with a stellar core. There is a large, very bright middle, and then a bright envelope, gradually fading to the edges. This is one of the brightest galaxies in Leo, viewable in virtually all apertures. Worth many return visits.
eg 3535: 1'.7 x 0'.8: Vis. 13.5; SB 13.7: Observed at 136x and 187x, this very faint oval was viewed best with a.v. A faint star is following.
eg 3580. 
eg 3611. 
eg 3630. 
eg 3633. 
eg 3640 (centre) and 3641, south of it. 
3645 is at centre. Note the triangle with two stars, one N and one F. 
eg 3664 is at centre, with 64A S. C39-173 is in the 
eg 3679.
eg 3535.
eg 3567: 0'.9 x 0'.7: Vis. 13.3; SB 12.76: Observed at 187x, the galaxy is bright but quite small. It was located within a triangle of 3 brighter stars, almost centre.
eg 3580: 0'.9 x 0'.3: Vis. 14; SB 12.9: Located at 136x, using a hand-drawn detailed map. It was oval, bright, and small. At 187x and 250x it is quite bright. A mag. 12 (?) star is following. The galaxy is cigar shaped, and an easy object to see, but it is small.
eg 3601: 0'.5 x 0'.5: Vis. 13.8; SB 12.1: Located at 136x, it looked like a fuzzy star. It was bright and actually a pretty good size at 187x and 250x. It proved to be an easy object for a 12" scope on a fine night.
eg 3611: 2' x 1'.6: Vis. 12.2; SB 13.3: Located at 60x and viewed up to 250x. At low to mid power it appeared round and very bright. At 250x it was now oval, and quite large with a.v. It shows a bright stellar core, a very bright middle section, and a fainter envelope.
eg 3630: 2'.1 x 0'.9: Vis. 12; SB 12.6: Located at 100x , it appears as if a bright star overlays the galaxy. At 136s the centre is very, very bright, and still seems as if it is actually a star (it isn't!). 187x gives decent views of a nice object,especially when occasional glimpses of its full length are obtained using a.v. 250x also provides a fine view.
eg 3633: 1'.1 x 0'.4: Vis. 13.5; SB 12.5: At 100x a pretty small suspicious oval patch was seen. At 136x the galaxy is now obvious, though small and pretty faint. the object was decent at view at 187x when a.v. was used. It is very elongated. Good views were also obtained using 250x and a.v.
eg 3640: 4' x 3'.2: Vis. 10.4; SB 13.2: A pair with 3641. Located at 85x, 40 is very large, very bright, and slightly oval. I stopped down to 8" of aperture and enjoyed a fine view as well. At 12" and 85x 3641 was glimpsed. At 136x the galaxy becomes very very large, showing a big and bright centre, and a fainter but still pretty bright envelope. 3641 could be seen in this range using 8", but it was considerably smaller than viewed at 12". At 187x and 12", 41 shows a brighter centre with fainter outer haze. It is round, and there is notable separation from 3640. At 250x and 375x both galaxies remain bright. I noted a possible variation in brightness in some areas of 40's outer envelope. A real showpiece!
eg 3641: 0'.9 x 0'.9: Vis. 13.2; SB 13. A pair with 3640. See above.
eg 3643: 1'.2 x 0'.8: Vis. 14; SB 13.9: At 187x this galaxy is small and faint, but quite oval. There is a faint star SF. Views are slightly better at 250x.
eg 3644: 1'.5 x 0'.7: Vis. 13.7; SB 13.6: I had a lot of difficulty finding this galaxy. I finally glimpsed it like a small shadow just N of a faint star, itself N of other stars of note. Seen at 187x, 200x, and 250x with a.v. only. It is very small, oval, very faint, and even the dim star S of it dampens its appearance. It was a painful way to end an otherwise productive and fun night of observing.
eg 3645: 0'.6 x 0'.6: Vis. 14.3; SB 13.5: There is some controversy here, with many sources claiming that this is the same object as eg 3630. Unranometria instead plots this extremely faint, small, round object as the one and only. Viewed with a.v. at 200x and 250x, it forms the apex of a triangle with two stars F, one N and one F.
eg 3647: 0'.3 x 0'.3: Vis. 14.6; SB 12.1: The sighting of this tiny faint galaxy at 200x and 250x completes a group of 7 that include 3630, 3640, 3641, 3643, 3644, and 3645! This night I was able to review the other six quite easily, though 43, 44, and 45 are also very tricky. 47 is small, faint, hazy, and F a somewhat brighter star. This star may, in fact, be another galaxy.
eg 3664: 2'.1 x 1'.9: Vis. 12.8; SB 14: A pair with 3666A. 64 is faint and elusive at 84x, but somewhat better at 136x. It is very elongated at this power. It then seems to become more round at 187x and 250x. While not difficult to see, it is quite faint. It is pretty large, with one area being brighter (the oval shape at 136x?). 3664A was first confirmed at 375x, being very faint and possibly round, but "broken" on one side.
eg 3664A: 1'.1 x 1': Vis. 14.3; SB 14.2: A pair with eg 3664. See above.
lower right corner, not observed.
eg 3662: 1'.3 x 0'.8: Vis. 12.9; SB 13: Located at 84x. At 136x a stellar core is noted, and the galaxy becomes elongated. It seems pretty small, but it is fairly bright. At 187x and 250x I had good views. It is now a good size, with a very bright centre. A faint star is S.
eg 3679: 1' x 0'.8: Vis. 14.2; SB 13.3: Located at 187x, this one required a hand-drawn pinpoint map to locate. With this tool it is not a difficult object to see. A faint star is N. At 250x things are considerably better. It seems quite oval, and though ghostly it can be seen well.
Mapman Mike
No comments:
Post a Comment