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DeepSkyBagger

Advanced Members
  • Content Count

    406
  • Joined

  • Last visited

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About DeepSkyBagger

  • Rank
    Star Forming

Profile Information

  • Gender
    Male
  • Interests
    Visual Deep-Sky observer for over 40 years.
    Webb Deep-Sky Society member
    British Astronomical Association member
    Royal Astronomical Society fellow
  • Location
    Lancashire
  1. DeepSkyBagger

    Brief Object List.

    An interesting list with some very fine objects on it. One more slight error jumped out at me. NGC 1514 isn't the Eskimo Nebula and it isn't in Gemini. It's in Taurus. EDIT: Just spotted another. The brightest star in NGC 457 is phi Cas (not phi UMa as suggested in your list). It isn't 200,000 times the size of the Sun - no stars are that big. The star is a multiple, two components of which are supergiants. The brightest component, A, has a *luminosity* of 170,000 solar, but its mass is just 6x solar, and its radius maybe 250 - 260x solar. Still a really good target list!
  2. DeepSkyBagger

    It might be windy but what a night.

    Sounds like a good night. Might I be allowed to correct one thing? NGC 2438 is *not* the Calabash Nebula. The Calabash Nebula is 6.5' in PA 78 degrees (slightly north of east) from NGC 2438. The two objects (though both appear to be in M46) are not associated. The CN is the same distance as M46, but NGC 2438 is some way behind it. It is also much smaller and very much fainter than NGC 2438. The attached picture shows the planetary nebula in the top left and the CN in the bottom right.
  3. DeepSkyBagger

    Synscan , so what are your results ?

    I have a SynScan mount, but it's a Dobsonian. My results are very variable. Sometimes (rarely) it's spot on. Others, degrees out. There's no way of predicting which way it will go on any night. I mostly search for faint DSOs, so this can be very frustrating. I use the GoTo, then I have to identify where I've actually ended up, then star hop to where I should be. There seem to be many little rules, or myths, about doing the alignment: 1) Start with the scope horizontal and pointing north (makes no difference) 2) Choose alignment stars that are wide apart but at about the same declination (makes no difference) 3) Centre the second alignment star using only right and up, not left and down. (This is something to do with backlash, so I always do this one). The results are so varied that I can't make any sense out of it at all, other than sometimes it's really good, and sometimes it's just rubbish. If it's rubbish, I'm trashed for the night. No amount of realigning or switching-off-and-on-again will fix it.
  4. DeepSkyBagger

    Super Bogardus.

    Nick, Where do you get this name 'Bogardus' from? Only two stars in Auriga have 'official' IAU names, alpha (Capella) and beta (Menkalinan). SIMBAD lists an unofficial name for theta, but it's 'Mahasim' not 'Bogardus'. I don't use lesser-known star names, I think Bayer designations are less ambiguous. Patrick
  5. DeepSkyBagger

    Perseus 'a' and ngc1444

    Nice observation of Cr 39, avtaram. For what it's worth, and for completeness' sake, here's my observation of NGC 1444. The faintest stars recorded are 14th magnitude.
  6. DeepSkyBagger

    Perseus 'a' and ngc1444

    NGC 1444 is centred on the star HD23675, magnitude 6.8. You can certainly see this star through binoculars, but the stars of NGC 1444, which lie right behind this bright star, are around 13th magnitude. You'll need at least a 6" telescope and good skies to see it. I observed it about a fortnight ago with a 12" reflector and found it an uninspiring scatter of fairly faint stars. Here's a picture of NGC 1444 from the Palomar Sky Survey. As you can see, the bright star outshines the whole of the rest of the cluster. The image is about 10' across.
  7. DeepSkyBagger

    Perseus 'a' and ngc1444

    I'm not sure what you mean by 'Perseus 'a''. 'Perseus A' is a galaxy, NGC 1275, a giant peculiar elliptical, magnitude 11.9. You wouldn't be able to see it through 10x50s. If you mean 'alpha Persei', the brightest star in Perseus (Mirphak), then yes, it is surrounded by a cluster of stars known as the 'Alpha Persei Cluster' and catalogued as Melotte 20 and Collinder 39. It has about 50 members and lies about 500 light years away.
  8. DeepSkyBagger

    Bortle 2 skies.....yes please

    Best of luck with the weather. I really hope you get some clear skies. Forget aperture, darkness is king! Cheers!
  9. DeepSkyBagger

    Galactic Signal

    It hasn't slewed for well over a year, and doesn't look likely to do so any time soon. Currently, the telescope is being very heavily refurbished. No science from that 'scope for a long time! Superb picture, though!
  10. DeepSkyBagger

    Galloway Autumn Star Camp 2018

    Looks like tonight's your night, guys and gals. Good forecast for clear skies at least until midnight. https://www.yr.no/place/United_Kingdom/Scotland/Newton_Stewart/hour_by_hour.html Hope it works out that way!
  11. DeepSkyBagger

    Star Cluster Magnitudes

    Lenscap's explanation of cluster magnitudes is spot on. It sounds like you're having an issue with a particular cluster. If so, which is it? It may help to provide a thorough explanation if we know. Most good catalogues will provide the magnitude of the brightest individual star in the cluster, which is also a good indication of whether the object will be visible or not. You *can* see open clusters where the brightest star is below the limit of your scope, but all you'll see is a faint glow.
  12. DeepSkyBagger

    Cetus fuzzies

    A couple of good nights galaxy-bagging! I've observed most of the galaxies you saw on the first night. Here are my observations for comparison: M77 (observed many times, this is the latest) A very bright and small galaxy. It appears quite round but there is a hint of elongation NS. The following edge of the galaxy shows a band of darkness, possibly a dark lane. I have previously noted in smaller instruments that this side of the galaxy appears fainter than the other. Immediately following is a 10th mag star. (12” Newtonian, x81) NGC 1055: (Most recent observation) Decidedly dim for a galaxy with a magnitude of 10.6. Presumably this is due to the low surface brightness. It is essentially a featureless glow, elongated almost east-west. No structure, no central brightening. (10” Newtonian, x214) NGC 1073: Sky background quite yellow and muddy. Large, grey, diffuse and very faint. Not always visible. No structure of any kind. A poor view. Very difficult. (12” Newtonian, x150) NGC 1087: (Most recent observation) Pretty bright. Large. Very elongated and brighter along its central axis. (12” Newtonian, x150) NGC 936: Pretty bright, highly elongated and quite large. Much brighter in the middle with a bright nucleus. I suspect I was seeing just the bright central bar of this galaxy. (12” Newtonian, x150) NGC 941: Very dim disc with no brightening or structure visible. Difficult. (12” Newtonian, x150) NGC 1015: Never seen. Of the galaxies you observed on the second night with the 18”, only 1016 is even on my Lifetime Observing Program, the others are too faint for me to bother looking for until I get a larger scope. Thanks for the report, I enjoyed reading it and revisiting my own observations.
  13. Absolutely magnificent, James. I almost forgot to breathe. Thank you for sharing.
  14. DeepSkyBagger

    Hello from Bristol, UK

    Hi John, I just had a look at the BAS website. Whoever looks after it needs to have a look at the sky map shown as 'the whole sky from Bristol at 9pm on 7 April'. See http://www.bristolastrosoc.org.uk/www/pages/home/the-sky-this-month.php I get that it's the wrong date because it's a pain to keep these things current, but unless Bristol has somehow located to the southern hemisphere, there's no way the sky can ever look like that!
  15. DeepSkyBagger

    Herschel 400 lists

    When on this site, note that if you click on the image of the book cover you will be taken to a free download of a pdf of that book. You can then either print the whole thing out yourself, or just do it page by page as required. If you click on the 'print version' link (barely readable dark blue on black), then you'll be taken to a shop where you can buy the book ready printed.
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