Location: at home in Tomball, TX
Cloud cover: less than 5%
Transparency: average (3/5)
Seeing: below avg (4/5)
Darkness: no moon, city glow
Wind: almost none (see below)
Temperature: 70º-72º
Humidity: 95%+
Dew Point: 69º+
Time: 10:45 pm – 12:15 am CDT
OTA: 8″ SC

First light using Starry Night Pro to control the telescope via serial cable. I have an old version of SNP (4.5) and there are a few minor user interface quirks, but generally I was pleased with the operation. Also first light using DIYPhotoBits to control the Nikon D50 via USB. I was very pleased with the results. I’ve actually modded DIYPB to display images after download using IrfanView, making it much easier to center and check focus.

I started with M57, the Ring Nebula. Exposures above 10 seconds exhibited elongation. It didn’t occur to me until later to use DIYPB’s time lapse feature to collect a set of images for stacking, so I only captured two at that speed. M57 is hardly visible at only 10 seconds, even using ISO1600, so there’s not much to see there.

Next I captured photos of Jupiter and the Galilean moons. Due to the bad seeing and the humidity the image quality was quite poor. The two main bands were visible but murky and the entire image seemed slightly out of focus. I rechecked the focus with the Hartman mask and that was not the problem. The composite photo below shows the relative positions of the planet and its four moons. Io and Europa (on the left) passed in conjunction over the next couple of hours, but it was already late and I didn’t want to stay up for it.

Jupiter and its moons (composite image)

Last I photographed M52, an open star cluster in the constellation Cassiopeia. As earlier with M57, I was unable to get an exposure longer than 10 seconds without elongation. It occurred to me then to use DIYPB’s time lapse feature to take several photos (10, actually) in quick succession then try to stack and merge them later. I tried stacking with RegiStax5, but I was not pleased with the results: the stars looked dull and washed out. I stacked the frames by hand and the result was much better.

Composite image detail of M52(click image for 1000x800 resolution)

This image shows far fewer stars than you might see in a typical photo of M52. This view is representative of what you might see in an amateur telescope. You mileage will vary depending on your telescope and sky conditions.

Location: Uniontown, OH
Cloud cover: < 5%
Transparency: avg.
Seeing: avg (3/5)
Darkness: city sky glow, no moon
Wind: < 5mph
Humidity: 85%-90%
Temperature: 65°F-70°F
Start Time: 9:30 pm EDT
End Time: 10:30 pm EDT
Instrument: Meade 50mm telescope; eyepieces: 17.5mm, 12mm, 9mm
Bushnell 12×50 binoculars

Saw Venus and Saturn side by side in binoculars. With telescope Venus crescent and Saturn’s rings clearly visible, but not gap between rings and planet. Could not find Titan at ~8.5

Saw Jupiter and 4 Galilean moons. Jared drew diagram of moons relative to planet, then searched for reference and identified each of the four moons.

Location: Tomball, TX
Cloud cover: 5%-10% – Stratus – up to 80% later
Transparency: avg.
Seeing: avg (3/5)
Darkness: city sky glow, no moon
Limiting Magnitude: 4 (unaided), 9-10 (scope)
Wind: mild
Humidity: 65%-70%
Temperature: mid-70’s
Start Time: 9:30 pm CDT
End Time: 11:00 pm CDT

Instrument: Bushnell 3″ Newtonian

Venus: bright half disc resembling 1st quarter moon.

Saturn: crisp outline and ring separation; Titan trailing ~3 ring diameters behind planet.

Graffias (beta1 Sco): split double beta2 Sco with 7.9mm eyepiece. Both stars nice blue.

Jupiter: clear disc, no cloud bands visible. Moons Europa, Io, Ganymede, and Callisto trailing eastward, followed by HD 152516 (HIP 82734) at ~2X separation of Jupiter-Callisto.

Increasing cloud cover made further observing difficult.

Cloud cover: 5%-10% – Cirrus
Transparency: below avg.
Seeing: below avg (4/5)
Darkness: city sky glow, no moon
Limiting Magnitude: 4 (unaided), 8 (bino)
Wind: none
Humidity: 85%-90%
Temperature: mid-70’s

Instrument: Bushnell 12×50

Compared to last night, tonight was a a little “hazy-er”. Not sure if this is due to worse transparency or higher humidity. Last night’s transparency might have been better than I rated it.

Jupiter was a bright disc surrounded by atmospheric glow that encompassed its moons. Callisto, Ganymede, Io, and Europa were all visible.

Antares appeared much as last night, yellow-orange with a lot of atmospheric sparkling that included green.

Vesta formed ~120° angle with HIP 80793 and phi Oph.

Spica was bright and blue; Arcturus yellow-white.

I could just make out the bright oval of Saturn, but no ring separation and no moons.

Venus large and very bright orange-white. Could not discern phase, perhaps due to brightness and/or haze.