Session Name: 200416
Observer: Sam
Site: 29 Quedo (Obs)
Started: Thursday, April 16, 2020 at 8:41 PM
Finished: Thursday, April 16, 2020 at 11:39 PM
Seeing: 3. G – Brighter planets twinkling slightly
Session Notes:
Goal: mostly H400, some HII, some PN
Alignment went smoothly: Polaris/Procyon in 8mm, error 0.275
360 clear. Little dipper in SF lightdome.
Poor seeing: brighter stars twinkling.
SQM-L@11:41
Z- 21.22
E- 21.09
S- 21.22
W- 21.10
N- 20.86
Brighter stars (Leo, Big Dipper, etc.)
ID: NGC4036
Type: Galaxy; Constellation: UMa
Name: I-253; Mag: 11.2
Date: 2020-04-16 @ 21:11; Telescope: Dob; Eyepiece: 26mm Nagler Type 5; Magnification: 82x.
Observations: 26mm: gal. faint. elliptical w/elliptical core. Halo. No structure. ~1/40 fov. Shares fov with round gal 1/4 fov to N or NNE [NGC4041]. Sky is bright.
13mm: hard focus. gal better defined.
8mm: drift suggest EW orientation.
ID: PK189+07.1
Type: P Neb; Constellation: Gem
Name: M1-7; Mag: 13.5
Date: 2020-04-16 @ 20:56; Telescope: Dob; Eyepiece: 26mm Nagler Type 5; Magnification: 82x.
Observations: [PN is not large: I’m seeing some other cloudiness in field]
26mm: Not found. Did see what appears to be very faint, very large disk, ~ 1/4 fov. Apparent mostly because it dims & blurs some stars.
26mm+OIII: no response to OIII
26mm+NPB: possibly a bare response to NPB
17mm: hint of some blurring of some stars over 1/3 fov.
17mm+OIII: possibly some response.
17mm+NPB: possibly some response: very nebulous: faint/ghostly, splotchy/wispy.
13mm: closing on 1/2 fov. Very nebulous/faint. More impression than sighting.
13mm+OIII: very mild response.
13mm+NPB: Some response.
ID: NGC4041
Type: Galaxy; Constellation: UMa
Name: SAC9249; Mag: 11.3
Date: 2020-04-16 @ 21:19; Telescope: Dob; Eyepiece: 26mm Nagler Type 5; Magnification: 82x.
Observations: 26mm: gal shares fov with NGC4036 to SSW ~1/4 fov. Round, gently brighter toward center, definite nucleus & halo. Nucleus large relative to halo. Sky is bright.
ID: M85
Type: Galaxy; Constellation: Com
Name: SAC2551; Mag: 9.1
Date: 2020-04-16 @ 21:20; Telescope: Dob; Eyepiece: 26mm Nagler Type 5; Magnification: 82x.
Observations: 26mm: gal, paired with NGC4394 to E. Elliptical. Large halo. Suddenly brighter toward center. No structure.
13mm: Still no structure. Star involved in halo (SSE part of halo.) Focus is hard.
ID: NGC4394
Type: Galaxy; Constellation: Com
Name: SAC2554; Mag: 10.9
Date: 2020-04-16 @ 21:20; Telescope: Dob; Eyepiece: 26mm Nagler Type 5; Magnification: 82x.
Observations: 26mm: gal. paired with M85 to W. Round. Suddenly brighter toward center. 13mm: Brighter (not suddenly) toward center. Focus is hard. On tippy-toes
ID: NGC4450
Type: Galaxy; Constellation: Com
Name: II-90; Mag: 10.1
Date: 2020-04-16 @ 21:26; Telescope: Dob; Eyepiece: 26mm Nagler Type 5; Magnification: 82x.
Observations: 26mm: gal. not quite round. brighter toward center. nucleus somewhat extended. Halo ~5x nucleus size. no evident structure.
13mm: elliptical. nucleus shows evidence of extension with ellipticity. Orientation: close to NS.
ID: NGC4459
Type: Galaxy; Constellation: Com
Name: I-161; Mag: 10.4
Date: 2020-04-16 @ 21:30; Telescope: Dob; Eyepiece: 26mm Nagler Type 5; Magnification: 82x.
Observations: 26mm: gal. fov shows at least three other gal. 4459 close to brighter field star. 1/4 fov to NE a faint round gal gently brighter toward center. 1/3 fov to SE is second round gal. Just beyond ~1/2 fov away. NGC4459: not quite round to elliptical, gently brighter toward center, nucleus large (nearly as large as halo). oriented ESE/WNW. [Brighter field star HD108676 @ 8.7m; gal to ENE is NGC4474; gals to SE are NGC4477 and NGC4479]
ID: NGC4474
Type: Galaxy; Constellation: Com
Name: SAC2574; Mag: 11.5
Date: 2020-04-16 @ 21:30; Telescope: Dob; Eyepiece: 26mm Nagler Type 5; Magnification: 82x.
Observations: 26mm: gal. Shares fov with NGC4459, 4477 4479. With NGC4459 centered, 4474 is 1/4 fov to NE, 4477 is 1/3 fov to SE, NGC4479 is just beyond at edge fov. faint round gal gently brighter toward center.
ID: NGC4479
Type: Galaxy; Constellation: Com
Name: SAC2576; Mag: 12.4
Date: 2020-04-16 @ 21:30; Telescope: Dob; Eyepiece: 26mm Nagler Type 5; Magnification: 82x.
Observations: 26mm: gal. Shares fov with NGC4459, 4474 4477. With NGC4459 centered, 4474 is 1/4 fov to NE, 4477 is 1/3 fov to SE, NGC4479 is just beyond at edge fov.
ID: NGC4473
Type: Galaxy; Constellation: Com
Name: SAC2572; Mag: 10.2
Date: 2020-04-16 @ 21:30; Telescope: Dob; Eyepiece: 26mm Nagler Type 5; Magnification: 82x.
Observations: 26mm: Shares fov with NGC4474, NGC4459, NGC4477, NGC4479. All at end of Markarian chain.
ID: NGC4477
Type: Galaxy; Constellation: Com
Name: SAC2575; Mag: 10.4
Date: 2020-04-16 @ 21:30; Telescope: Dob; Eyepiece: 26mm Nagler Type 5; Magnification: 82x.
Observations: 26mm: gal. Shares fov with NGC4459, 4474 4479. With NGC4459 centered, 4474 is 1/4 fov to NE, 4477 is 1/3 fov to SE, NGC4479 is just beyond at edge fov. Center on NGC4477 also find brighter gal NGC4473. All at end of Markarian chain.
ID: NGC4468
Type: Galaxy; Constellation: Com
Name: SAC2571; Mag: 12.8
Date: 2020-04-16 @ 21:40; Telescope: Dob; Eyepiece: 26mm Nagler Type 5; Magnification: 82x.
Observations: 26mm: gal. Between NGC4459 & NGC4474. ID’d after checking charts while observing NGC4459 fov.
ID: NGC4442
Type: Galaxy; Constellation: Vir
Name: II-156; Mag: 10.4
Date: 2020-04-16 @ 21:41; Telescope: Dob; Eyepiece: 26mm Nagler Type 5; Magnification: 82x.
Observations: 26mm: gal. Shares fov with at least two other gal ~1/2 fov away to SW. Small, faint.
17mm: Very Elliptical. Suddenly brighter toward center. Orientation WSW/ENE.
ID: NGC4417
Type: Galaxy; Constellation: Vir
Name: NGC4437; Mag: 11.1
Date: 2020-04-16 @ 21:45; Telescope: Dob; Eyepiece: 26mm Nagler Type 5; Magnification: 82x.
Observations: 26mm: gal. Shares fov with at 4424 (SE 1/8 fov) and NGC4442 (NE 1/2 fov). Elliptical, gently brighter toward center. Spindle with nucleus oriented with spindle.
ID: NGC4424
Type: Galaxy; Constellation: Vir
Name: SAC9727; Mag: 11.7
Date: 2020-04-16 @ 21:45; Telescope: Dob; Eyepiece: 26mm Nagler Type 5; Magnification: 82x.
Observations: 26mm: gal. Shares fov with at 4417 (NW 1/8 fov) and NGC4442 (NE 1/2 fov). Elliptical oriented NE/SW. Brighter to suddenly brighter toward center. Higher surface brightness than NGC4417.
ID: NGC2371
Type: P Neb; Constellation: Gem
Name: II-316; Mag: 13
Date: 2020-04-16 @ 21:54; Telescope: Dob; Eyepiece: 26mm Nagler Type 5; Magnification: 82x.
Observations: Also NGC2372: two parts of same pn (double-lobed)
26mm: PN. Appears as two very close (barely separated) PN. Both suddenly brighter toward center, with nebulosity and channel running between them. Oriented SSW/NNE.
26mm+OIII: Responds well. Both lobes brighten and channel becomes clearer. Seeing not good tonight.
26mm+NPB: Responds well. Two distinct pieces. Both suddenly brighter toward center.
13mm: Starting to see some filling in between lobes. Both lobes distinct and brighter toward center. S lobe brighter than N lobe. S lobe appears to have a stellar-like component.
13mm+OIII: responds well. Two distinct lobes, both suddenly brighter toward center, one to S brighter and more centrally condensed.
13mm+NPB: responds but not as well as w/OIII. Description same as w/OIII.
8mm: Two lobes and central star between lobes. Central * is AV2 (not present DV).
8mm+OIII: Responds well. Two lobes still distinct. Some nebulosity enveloping entire structure. No central *
8mm+NPB: Responds OK. Same desc as OIII. No central *.
ID: NGC4550
Type: Galaxy; Constellation: Vir
Name: I-36; Mag: 11.5
Date: 2020-04-16 @ 22:06; Telescope: Dob; Eyepiece: 26mm Nagler Type 5; Magnification: 82x.
Observations: 26mm: gal. Shares fov with two other gal: NGC4551 very close to NE, M89 ~ 1/3 fov to N. Elliptical to spindle. gently brighter to center. Faint halo.
13mm: Nice elongation. Shows bulge. Nice halo.
ID: NGC4551
Type: Galaxy; Constellation: Vir
Name: SAC9811; Mag: 12
Date: 2020-04-16 @ 22:06; Telescope: Dob; Eyepiece: 26mm Nagler Type 5; Magnification: 82x.
Observations: 26mm: gal. Immediately adjacent to NGC4550, to immediate S (~1/3 fov) M89. Elliptical/not quite round. gently brighter toward center. Faint halo
13mm: not quite round. Brighter toward center.
ID: M89
Type: Galaxy; Constellation: Vir
Name: SAC9812; Mag: 9.8
Date: 2020-04-16 @ 22:06; Telescope: Dob; Eyepiece: 26mm Nagler Type 5; Magnification: 82x.
Observations: 26mm: gal. Round, bright. Shares fov with NGC4550, NGC4551 to immediate S ~1/3 fov.
ID: NGC2775
Type: Galaxy; Constellation: Cnc
Name: I-2; Mag: 10.3
Date: 2020-04-16 @ 22:15; Telescope: Dob; Eyepiece: 26mm Nagler Type 5; Magnification: 82x.
Observations: 13mm: gal. relatively large, not quite round, brighter toward center. halo ~5-10x size nucleus. Orientation is ~NS.
ID: NGC4762
Type: Galaxy; Constellation: Vir
Name: II-75; Mag: 10.2
Date: 2020-04-16 @ 22:20; Telescope: Dob; Eyepiece: 26mm Nagler Type 5; Magnification: 82x.
Observations: 26mm: gal. Very, very nice flat gal. Long spindle. Brighter toward center extended nucleus. SSW to NNE orientation. ~1/20 fov. Shares fov with NGC4754 ~1/4 fov to SE. Together these form a very pretty pair.
ID: NGC3521
Type: Galaxy; Constellation: Leo
Name: SAC5474; Mag: 9
Date: 2020-04-16 @ 22:27; Telescope: Dob; Eyepiece: 26mm Nagler Type 5; Magnification: 82x.
Observations: 26mm: gal. elliptical. brighter toward center, extended. Halo ~ 10x nucleus. Orientation ~ NS
ID: NGC4698
Type: Galaxy; Constellation: Vir
Name: III-6; Mag: 10.5
Date: 2020-04-16 @ 22:30; Telescope: Dob; Eyepiece: 26mm Nagler Type 5; Magnification: 82x.
Observations: 26mm: gal. Round, gently brighter toward center. NS orientation. Pinned between two field stars at NS ends of gal: centered, almost directly on line, maybe just barely E of line.
ID: PK164+31.1
Type: P Neb; Constellation: Lyn
Name: JnEr1; Mag: 13.1
Date: 2020-04-16 @ 22:32; Telescope: Dob; Eyepiece: 26mm Nagler Type 5; Magnification: 82x.
Observations: 26mm: pn. Not present.
26mm+OIII: Some response. hint of large structure. A ring, 1/4 fov in diam. Uneven in illumination. Thicker and brighter to W, less substantial otherwise. Moves with field stars.
26mm+NPB: Responds better than with OIII. More of ring is visible, but part that I see with OIII is brighter with OIII. Moves with field stars.
13mm: part of a ring is visible: entire ring would have diam ~1/3 fov, what I can see is only ~ 1/2 of ring. Moves with field stars
13mm+OIII: present, but no increased contrast. Moves with field stars
13mm+NPB: present, but no increased contrast. Moves with field stars.
Too large for 8mm and don’t think the 17mm would help much.
ID: NGC3887
Type: Galaxy; Constellation: Crt
Name: NGC3887; Mag: 11
Date: 2020-04-16 @ 22:51; Telescope: Dob; Eyepiece: 26mm Nagler Type 5; Magnification: 82x.
Observations: 26mm: gal. faint. elliptical. very gently brighter toward center or uniform brightness. Sky is bright.
13mm: very faint not-quite-stellar nucleus. Distinct. Somewhat interesting galaxy.
ID: NGC3892
Type: Galaxy; Constellation: Crt
Name: NGC3892; Mag: 12
Date: 2020-04-16 @ 22:55; Telescope: Dob; Eyepiece: 13mm Ethos; Magnification: 163x.
Observations: 13mm: gal. elliptical. brighter toward center. disk-like nucleus. extended with gal. Enough edge on that can see a bulge.
ID: NGC4024
Type: Galaxy; Constellation: Crv
Name: NGC4024; Mag: 13
Date: 2020-04-16 @ 22:57; Telescope: Dob; Eyepiece: 13mm Ethos; Magnification: 163x.
Observations: 13mm: gal. faint. suddenly brighter toward center. faint halo. not quite round. Halo gives an AV impression of being large and extended
ID: NGC4133
Type: Galaxy; Constellation: Dra
Name: NGC4133; Mag: 13
Date: 2020-04-16 @ 23:01; Telescope: Dob; Eyepiece: 13mm Ethos; Magnification: 163x.
Observations: 13mm: gal. ~1/2 fov away is bright field star. Not quite round. Gently brighter toward center.
ID: NGC4291
Type: Galaxy; Constellation: Dra
Name: NGC4291; Mag: 12
Date: 2020-04-16 @ 23:03; Telescope: Dob; Eyepiece: 13mm Ethos; Magnification: 163x.
Observations: 13mm: gal. Near bright field star. Shares fov with 2 other gal: NGC4291 forms square with three other field stars. From NGC4291 SE through diagonal equal distance is second gal [NGC4319]. Third gal [NGC4386] is at very edge fov to NE, ~opposite side of fov as bright field star.
ID: NGC4386
Type: Galaxy; Constellation: Dra
Name: SAC3800; Mag: 11.7
Date: 2020-04-16 @ 23:02; Telescope: Dob; Eyepiece: 13mm Ethos; Magnification: 163x.
Observations: 13mm: gal. Near bright field star. Shares fov with 2 other gal: NGC4291 forms square with three other field stars. From NGC4291 SE through diagonal equal distance is second gal [NGC4319]. Third gal [NGC4386] is at very edge fov to NE, ~opposite side of fov as bright field star. Elliptical.
ID: NGC4319
Type: Galaxy; Constellation: Dra
Name: NGC4319; Mag: 12
Date: 2020-04-16 @ 23:02; Telescope: Dob; Eyepiece: 13mm Ethos; Magnification: 163x.
Observations: 13mm: gal. Near bright field star. Shares fov with 2 other gal: NGC4291 forms square with three other field stars. From NGC4291 SE through diagonal equal distance is second gal [NGC4319]. Third gal [NGC4386] is at very edge fov to NE, ~opposite side of fov as bright field star. Elliptical, gently brighter toward center. Oriented perpendicular to line between it and bright field star ~1/2 fov away [SE/NW].
ID: NGC4250
Type: Galaxy; Constellation: Dra
Name: NGC4250; Mag: 13
Date: 2020-04-16 @ 23:15; Telescope: Dob; Eyepiece: 13mm Ethos; Magnification: 163x.
Observations: 13mm: Round. brighter toward center. very faint. halo surrounding. Possible other gal ~1/3 fov to W; if anything it is at edge of vision [Charts/CDC shows nothing.]
ID: NGC4487
Type: Galaxy; Constellation: Vir
Name: NGC4487; Mag: 11
Date: 2020-04-16 @ 23:22; Telescope: Dob; Eyepiece: 13mm Ethos; Magnification: 163x.
Observations: 13mm: gal. very low sb. elliptical. Nearly uniform in brightness. Perhaps nucleus with AV, very gently brighter toward center.
ID: NGC4915
Type: Galaxy; Constellation: Vir
Name: NGC4915; Mag: 11.9
Date: 2020-04-16 @ 23:24; Telescope: Dob; Eyepiece: 13mm Ethos; Magnification: 163x.
Observations: 13mm: gal. not quite round. small. suddenly brighter toward center. fuzzy. nucleus ~1/2 gal overall. Shares fov with another faint low sb galaxy ~1/3 fov to SW [NGC4890].
ID: NGC4890
Type: Galaxy; Constellation: Vir
Name: SAC9975; Mag: 14
Date: 2020-04-16 @ 23:24; Telescope: Dob; Eyepiece: 13mm Ethos; Magnification: 163x.
Observations: 13mm: gal. not quite round. very low sb. Shares fov with NGC4915 ~1/3 fov to NE.
ID: NGC2903
Type: Galaxy; Constellation: Leo
Name: SAC5279; Mag: 9
Date: 2020-04-16 @ 23:24; Telescope: Dob; Eyepiece: 13mm Ethos; Magnification: 163x.
Observations: 13mm: gal. Elliptical, 3:1. Large: 1/8 fov in long dimension. Brighter toward center elongated nucleus. Quite nice.
8mm: orientation NS. In N side halo has toward its edge a bright lump: second gal? some feature this gal? Very definite lump of brightness. [No other object shows in charts. IDSA field guide shows NGC2903 as a barred spiral with NGC2905 as bright HII region. SDSS images shows halo may appear somewhat brighter to N].
ID: NGC2372
Type: P Neb; Constellation: Gem
Name: NGC2371; Mag: 13
Date: 2020-04-16 @ 21:54; Telescope: Dob; Eyepiece: 26mm Nagler Type 5; Magnification: 82x.
Observations: Duplicate NGC: See NGC2371 this date