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Lacerta and Aquarius
Last post 10-30-2008 10:56 AM by StarNerd. 4 replies.
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  • 10-23-2008 12:09 PM

    Lacerta and Aquarius

    This was an observing report I wrote up in the beginning of October but I didn't have my trademark maps ready, so I put it on hold until I could work on my maps a little bit.  One thing led to another and I never got it done until now.  So, anyway, here it is.  I hope you like it.

    Lacerta the Lizard and Aquarius the Waterbearer

    10/2/2008 10:00PM EDT - 10/3/08 1:30AM EDT

    Equipment: 5" f/5 Reflector with 26mm, 9.7mm, and 6.4mm Plossl (25x/2.1 deg, 67x/0.8 deg, and 102x/0.5 deg respectively, and 50x/1.0 deg, 134x/0.4 deg, and 203x/0.3 deg with 2x barlow, respectively).  I was seeing a record 4.6 magnitude at zenith tonight.

    I wanted to find the constellation Lacerta.  I kept sighting down the axis of Cygnus from Albireo to Sadr to Deneb and beyond and I kept ending up in Cephus.  So, I got my atlas and a nice comfy pillow, and started out by lying on my back on my front porch with my head back on the pillow and relaxed.  After letting my eyes adjust and consulting the atlas with my red flashlight, I realized that if you look at Deneb at the tail of Cygnus, and look left, there are 2 stars: 58 nu Cygni (mag 3.9) and 62 xi Cygni (mag 3.7).  Make the jump from 58 nu to 62 xi and continue zig-zagging to the North West to 73 rho Cygni (mag 4.0) to 81 pi Cygni (mag 4.2).  Continue one more hop and you land on the star 7 alf Lacertae (mag 3.8).  It seems like this star is invisible until you try to look for it, then it pops out at you.  I let my eyes wander there and saw a star to the left called 5 Lacertae (mag 4.4) and a star to the right called 3 bet Lacertae (mag 4.4).  Now, take in those 3 stars and a very dim 4th pops out called 4 Lacertae (mag 4.6) and forms a narrow diamond pointing roughly North to South.  The Southern star of this diamond, 5 Lacertae, is the North vertex of a trapezoid of stars opening to the South.  Going clockwise, 5 Lacertae, 2 Lacertae (mag 4.6), 6 Lacertae (mag 4.5), and 11 Lacertae (mag 4.6) form this trapezoid.  Now, from 6 Lacertae go South West you stumble upon a star SAO 72155 (mag 4.5) and zig zag back South East to 1 Lacertae (mag 4.1) and you've taken in the entire constellation of Lacerta "the lizard".  It kind of looks like a lizard with some imagination.

    Now, from 81 pi 2 Cygni (mag 4.2) if you double back toward Deneb (West South West) and you can find M39 an Open Cluster in Cygnus.  M39 was just a knot of about 20 or so stars, not too spectacular, but I get to chalk up another Messier object.

    Next, I decided to try M71 a Globular Cluster in Sagitta.  I got on 12 gamma Sagittae (mag 3.5) and worked back down the arrow toward 7 delta Sagittae (mag 3.8).  Then, I went back to the midpoint between these stars and slightly South.  I knew I was there because I could see 9 Sagittae (mag 6.2) in the 26mm EP/2.1 deg FOV, but I couldn't see M71.  I thought I saw a smudge, but I just couldn't be sure, so I'll chalk this up as a failed attempt.  Sagitta was kind of getting on to the West where there is a lot of light pollution, so it simply might have been too washed-out.  At magnitude 8.5, this could easily have been the case.

    I turned my attention to the legs of Pegasus.  Off Markab (mag 2.5) to the South West you come across Biham (mag 3.5) and zig zag back North West to Enif (mag 2.4).  If you keep going in that direction (not quite as far as the jump from Biham to Enif) you hit the Globular Cluster M15 (mag 7.5).  This is a small compact Globular Cluster.  I was not able to resolve any individual stars, however.

    Next, I relaxed and opened my eyes to the South.  There, beneath Pegasus' back leg I could see the 4 stars that make up Aquarius the Water Bearer's head (from East to West): 62 eta Aquarii (mag 4.0), 55 zeta 1 Aquarii (mag 4.5), Sadachbia (mag 3.8), and Sadalmelik (mag 3.0).  There is a 5th dim star that I couldn't see to the North West of 55 zeta 1 Aquarii called 52 pi Aquarii (msg 4.7) which completes the elongated polygon which forms Aquarius' head.  Now, from Sadalmelik go South West to Sadalsuud (mag 2.9) and further South West to Albali (mag 3.8).  Albali is Aquarius' back foot.  From Sadalsuud South East you arrive at 33 iota Aquarii (mag 4.3) which is Aquarius' front foot (off the horn of Capricornus formed by Nashira to Deneb Algedi).  Now, go back to Sadalmelik and go South East to Ancha (mag 4.2) and due East to 73 lambda Aquarii (mag 3.7).  This is Aquarius' arm.  The water basket is formed starting at 73 lambda Aquarii and East North East to 90 phi Aquarii (mag 4.2) then almost due South to the trio of 91 psi 1 Aquarii (mag 4.2), 93 psi 2 Aquarii (mag 4.4), and 95 psi 3 Aquarii (mag 5.0).  (Incidentally from 90 phi Aquarii go East North East a little more than 1 deg. and you'll see the planet Uranus at this time.)  From 90 phi, go South South West to Skat (mag 3.3) then North North West to 71 tau Aquarii (mag 4.0) and back up to 73 lambda and you've formed a lobsided pentagon which is the tipping water basket.  The water pouring out is formed from 93 psi 2 (the 2nd star in the trio) due South to 88 Aquarii (mag 3.7) and 95 psi 3 (the 3rd star in the trio) due South to 98 Aquarii (mag 4.0).  Incidentally, the water is pouring on Piscis Austrinus whose brightest star is Formalhaut (mag 1.2).

    Anyways, from Sadalsuud due North, I stumbled upon the Globular Cluster M2 (mag 7.5).  M2 seems to be the twin of M15 in Pegasus.  And from Albali (Aquarius' back foot) to the East South East (toward Capricornus' mid-back star 23 theta Capricorni (mag 4.1)) I looked for the Globular Cluster M72 but could not find it.  No wonder, it's magnitude 10.0!  Due East and I could not find M73 which apparently is just an Asterism of stars of magnitude 9.0ish.  I'll have to try to find more information on this Messier object.

    Next, I swung the scope around to an old favorite of mine, M31 the Andromeda Galaxy.  This time I scrutinized what I was seeing, and above and to the left of M31's core, I could see another fuzzy near some stars.  I later verified this as M32 a Dwarf Elliptical companion galaxy to Andromeda.  Very cool!

    It was 1:30am, and I made an attempt on the Crab Nebula M1 because Taurus was coming up in the East.  I couldn't find it.  Orion was coming up in the South East and I caught this season's first view of the Orion Nebula and the Trapezium at 102x.

    -StarNerd

    Signature
    Zhumell Z12 12" F/4.9 Dob with Telrad+8X50 RACI Finder
    Home-built 5" F/5 on a DS-2000 Go-To Mount with Red Dot Finder
    Baader Hyperion Eyepieces (24mm, 21mm, 17mm, 13mm, 8mm, 5mm, 3.5mm)
    16x50 Bushnell Binoculars
  • 10-23-2008 02:33 PM In reply to

    Re: Lacerta and Aquarius

    A well written and detailed report, as always, StarNerd.  Thanks.  Love the maps.

    Signature
    Hello Darkness my old friend,
    I have come to talk with you again . . .

    18" Obsession Classic dob #1665
    10" Orion Skyquest Classic dob
    120mm Orion ST achromat
    15 X 70 celestron Skymaster binoculars
  • 10-29-2008 03:57 PM In reply to

    Re: Lacerta and Aquarius

    THANKS!  I have been trying to find Lacerta, and simply have not been able to locate it.  I printed off your map, and I will use it and your written detail to see if I can find Lacerta next outing.  This was a really helpful report. Love the charts!

    Signature
    Orion XT8 Classic Dob
    Nikon 10x50
  • 10-29-2008 04:38 PM In reply to

    Re: Lacerta and Aquarius

    The next time you cruise through Lacerta be sure to look for NGC 7209 and NGC 7243, two fine open clusters that are easily visible through binoculars.

    http://www.hawastsoc.org/deepsky/maps/lac/lac1.gif

    Dave Mitsky 

    Signature
    Chance favors the prepared mind.
    De gustibus non est disputandum.
  • 10-30-2008 10:56 AM In reply to

    Re: Lacerta and Aquarius

    zachsdad:
    A well written and detailed report, as always, StarNerd.  Thanks.  Love the maps.

    Thank you, zachsdad!

    Double Cluster 869:
    THANKS!  I have been trying to find Lacerta, and simply have not been able to locate it.  I printed off your map, and I will use it and your written detail to see if I can find Lacerta next outing.  This was a really helpful report. Love the charts!

    Just be aware that these maps are drawn on graph paper with Declination down the vertical axis and RA across the horizontal (Mercator projection), and it results in constellations North of about 60 deg getting distorted.  So, they are not good for locating objects geometrically.  You're better off with a computerized chart that shows the spherical nature of the sky for that.  However, they are good for logging where I've gone and what I've seen in my observation journal.  And, it seems, they make a good accompaniment to the written detail allowing you to follow along, and perhaps participate vicariously in my observations.  I'm glad you found it helpful!

    Lacerta is quite a dim constellation, but I enjoy a challenge, so I wanted to be able to find it.

    DaveMitsky:
    The next time you cruise through Lacerta be sure to look for NGC 7209 and NGC 7243, two fine open clusters that are easily visible through binoculars.

    Thanks Dave.  My primary target for the night in that region of the sky was M39 Open Cluster in Cygnus.   And here I was assuming that Lacerta was barren of interesting objects to look at.   I will definitely add those clusters to my "to view" list.  Last night the weather finally cleared out, but it was late.  Perhaps tonight...  I can watch out for mischief-makers as well as get some observing in...

     

     

    Signature
    Zhumell Z12 12" F/4.9 Dob with Telrad+8X50 RACI Finder
    Home-built 5" F/5 on a DS-2000 Go-To Mount with Red Dot Finder
    Baader Hyperion Eyepieces (24mm, 21mm, 17mm, 13mm, 8mm, 5mm, 3.5mm)
    16x50 Bushnell Binoculars
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