Jun 262016
 

A couple months ago I was playing around with a green laser, typically used by amateur astronomers to point out celestial objects to others,  and decided to photograph it in use to see how it would show in a photograph.  Honestly, this wasn’t high on my list of things to do but I was clouded out so thought I’d have some fun.  This is a typical untracked exposure length of 15 seconds at f/4 with a 40mm focal length.  I aimed the green laser at Rigel and tried to hold it steady for the duration of the 15 second exposure.  So, this is worst case scenario for the laser being continuously on and pointed at a single object for the duration of the exposure.  That’s not to belittle the impact that green lasers have on us imagers; a quick pass through our image might not be obvious in the final image but lingering on an object for a while might be the difference between a good 20 minute exposure and one that’s going in the trash.  I’ve been lucky enough that I haven’t had an image that was obviously ruined by a laser but then again it’s hard to tell; I’ve had bad glare that may have resulted from errant green lasers playing over my equipment….

 

IMG_2439

Green laser aimed at Rigel

 

 

Jun 192016
 

Site clearing is now well underway with a backhoe rental.  Most of the site is now cleared and a new, more drive-able, road is in place to get to the site.  Lots of clean up and grading to do but we’re getting there.

May 152016
 
M63 - Close Up

Galaxy M63 – Close Up

M63 - AP900GTO, Stellarvue SVQ-100, Apogee Ascent A694, Baader LRGB Filters, 4.5 Hour Total Exposure TIme.

M63 – AP900GTO, Stellarvue SVQ-100, Apogee Ascent A694, Baader LRGB Filters, 4.5 Hour Total Exposure Time.

 

 

M63 - Annotated

M63 – Annotated

Messier 63 (also known as M63, NGC 5055, or the Sunflower Galaxy) is a spiral galaxy in the constellation Canes Venatici consisting of a central disc surrounded by many short spiral arm segments. M63 is part of the M51 Group, a group of galaxies that also includes M51 (the ‘Whirlpool Galaxy’). M63 is an active galaxy with a LINER nucleus.[3]

M63 was discovered by Pierre Méchain on June 14, 1779.[4] The galaxy was then listed by Charles Messier as object 63 in the Messier Catalogue.

In the mid-19th century, Lord Rosse identified spiral structures within the galaxy, making this one of the first galaxies in which such structure was identified.[4]

In 1971, a supernova with a magnitude of 11.8 appeared in one of the arms of M63.

Information courtesy of Wikipedia.

 

Tennessee Spring Star Party at Dusk

Tennessee Spring Star Party at Dusk

Sat Night had some thin clouds moving through

Sat Night had some thin clouds moving through

 

Friday night was fantastic without a cloud to be seen.  Saturday night was less pristine with a lot of thin cloud moving through.  I thought we had some clearing later but a lot of the images from Sat night showed very inconsistent background values which leads me to believe we had thin stuff moving through all night.  Still, how many clear nights can you ask for?  It was a great TSSP and looking forward to the Fall Star Party.

SQM measurements topped out around 21.3 on Friday night and 21.4 on Saturday night.

Apr 172016
 

While playing with the telescope setup this afternoon I thought I’d take a quick shot at the massive sunspot (AR2529) that everybody has been talking about lately.  I also grabbed a quick shot of sunspot AR2532 as well.

AR2529_20160417

Sunspot AR2529 AP130EDT f/8 at Prime Focus Baader Solar Film Lumenera Lu070 CCD Atlas EQ-G Tracking

AR2532_20160417

Sunspot AR2532 AP130EDT f/8 Baader Solar Film Lumenera Lu070 CCD

Apr 112016
 
Apr 042016
 
Field_setup

The first arrivals setting up on the astronomy field

On April 1st through April 3rd Pickett State Park, a newly designated IDA Dark Sky Site, held its first Astronomy Weekend Star Party. We were clouded out Friday night but clouds on Saturday finally yielded to clear skies albeit with some very gusty winds until the wee hours of the morning.

Waiting for Clouds to Clear

Waiting for Clouds to Clear while Orion sets

MW_Rising

Early morning Milky Way rising over the astronomy field

Star Trails over the astronomy field

Star Trails over the astronomy field

Polar Region Star Trails

Polar Region Star Trails

Leo_Triplet2

The Leo Triplet – M65, M66, & NGC 3628
Stellarvue SVQ 100, Apogee Ascent A694, AP900GTO Mount, Exposure 4 hours, SQM 21.48

Rho

Rho Ophiuchi Cloud Complex stretching down to the Lagoon Nebula Canon 6D with 40mm f/4 ISO 1600 4min single exposure

 

 

 

Jan 112016
 

My buddy and I drove up to Pickett State Park which recently was designated a Dark Sky Park by the International Dark Sky Association. The night wasn’t perfect; cold, little too windy, and high thin clouds to the south that at times mucked with our images.  I had wanted to test out a new widefield camera tracker from StarSync LLC.  Unfortunately, I forgot my intervalometer so I was limited to 30 second exposures which isn’t the best test.  Still, I think it’s the tracker I’ve been waiting for.  I love the design.

Cone_FoxFur_100PV2

NGC 2264, Sh2-273: The Fox Fur and Cone Nebula. Taken with a Stellarvue SVQ100, Apogee Ascent A694 CCD, Atlas Mount, Baader LRGB Filters, Lodestar Autoguider CCD through an SX-OAG. Exposure time was 21x10min Lum, 6x10min each RGB. Sky brightness (SQM) ranged from 21.2 to 21.38 mag/arcsec^2.

This enigmatic formation of gas and dust lies in the constellation of Monoceros (the Unicorn) not far off the right arm of Orion. This is a close-up of a small section of a much larger complex, generally known as the Christmas Tree cluster. The mysterious Cone Nebula is also a part of this same cloud.

The red regions of this nebula are caused by hydrogen gas that has been stimulated to emit its own light by the copious ultraviolet radiation coming from the hot, blue stars of the cluster. The blue areas shine by a different process: they are mainly dust clouds that reflect the bluish light of the same stars.

Its popular name arises because the nebula looks like the head of a stole made from the fur of a red fox.

Information courtesy of Wikipedia.

 

Comet-Export_50p

Comet C/2013 US10 (Catalina) Integration centered on the comet and showing the star trails as the comet moves relative to its celestial backdrop.

Catallina

C/2013 US10 (Catalina) is an Oort cloud comet discovered on 31 October 2013 by the Catalina Sky Survey at an apparent magnitude of 19 using a 0.68-meter (27 in) Schmidt–Cassegrain telescope.[1] As of September 2015 the comet is around apparent magnitude 6.[6]

When discovered on 31 October 2013 observations from another object from 12 September 2013 were used in the preliminary orbit determination giving an incorrect solution that suggested an orbital period of only 6 years.[1] But by 6 November 2013 a longer observation arc from 14 August until 4 November made it apparent that the first solution had the wrong object from 12 September.[2]

By early May 2015 the comet was around apparent magnitude 12 and had an elongation of 60 degrees from the Sun as it moved further into the southern hemisphere.[7] The comet came to solar conjunction on 6 November 2015 when the comet was around magnitude 6.[6] The comet came to perihelion (closest approach to the Sun) on 15 November 2015 at a distance of 0.82 AU from the Sun.[3] At perihelion, it had a velocity of 46.4 km/s (104,000 mph) with respect to the Sun which is slightly greater than the Sun’s escape velocity at that distance. It crossed the celestial equator on 17 December 2015 becoming a northern hemisphere object. On 17 January 2016 the comet will pass 0.72 AU (108,000,000 km; 67,000,000 mi) from Earth and should be around magnitude 6[6] while located in the constellation of Ursa Major.

C/2013 US10 is dynamically new. It came from the Oort cloud with a loosely bound chaotic orbit that was easily perturbed by galactic tides and passing stars. Before entering the planetary region (epoch 1950), C/2013 US10 had an orbital period of several million years.[4] After leaving the planetary region (epoch 2050), it will be on an ejection trajectory.[4]

Information courtesy of Wikipedia.

IMG_2293

Thin clouds to the south lingered half of the night. 30 second exposure at 17mm FL, Canon 6D, tracked on StarSync Tracker. Orions belt and sword are prominent.

 

IMG_2299

Another test of the StarSync Tracker. 17mm FL with Canon 6D, StarSync Tracker, 30 second exposure. M31, The Andromeda Galaxy, is the prominent galaxy in the top middle of the image; second of course to the winter Milky Way.

Dec 282015
 

We’re coming up on the end of 2015.  I had high hopes of getting more finished this year but all things considered, things are moving along.  It shouldn’t be too long and our new garage with workshop will be finished which will allow me to layout imaging systems somewhere other than in our bedrooms….  From there, I hope to get the Exploradome up and running in 2016 with the OGS 10″ RC and U16 acting as the workhorse imaging system.

 

Digging out a few large stumps

Digging out a few large stumps

Aerial view of the observatory site.  Needs a lot of cleanup.

Aerial view of the observatory site. Needs a lot of cleanup.

Testing the OGS 10" RC

Testing the OGS 10″ RC

Dec 122015
 

Taken 12/5/2015 from Cherohala Skyway, North Carolina.  Sky quality was a little hazy early on and deteriorated by morning.  SQM readings started around 21.1 and topped out around 21.2 mag/arcsec^2.  This has always been a favorite object but I have always struggled processing it.  It’s dim, it’s difficult, it always seems soft…. I’d prefer to shoot these dark dusty nebula from a darker site and if I ever get the chance I’ll be coming back to this object.

NGC 1333 Stellarvue SVQ100 100mm f/5.8 APO Apogee Ascent A694 CCD Atlas EQG Mount w/EQMOD SX-OAG w/ Lodestar Guider Baader LRGB Filters 21x10min Lum, 3x10x5min RGB Cherohala Skyway, NC SQM: 21.1-21.2

 

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