With four nights in the park I planned to do a little observing along with the plannedhikes. situated on the south face of the island the park offers a view of southern skies objects that cannont be matched anywhere else in the 50 states.
Makaʻiki Mk2 setup at the Hilina Pali viewpoint in Hawaiʻi Volcanoes National Park observing the southern sky
The plan was simple… Getup in the wee dark hours and drive the 20 minutes to the Maunaiki Trailhead. I could then setup my little 6″ travel scope and observe the southern sky.
Arriving I at the trailhead I was not happy, unusual morning clouds covered the sky, not a star to be found. This is the Kaʻu Desert!! It is supppose to be dry and clear in the morning. My cursing had no effect on the clouds.
A quick look at the satellite imagery and I headed further down the road to the Halina Pali Overlook with some hope. It was dicey, but I was already driving around in the middle of the night, why not?
And behold… Clear skies. Somewhat. It had clearly rained in the night as everything was wet. But at least some of the sky was beautifully dark and clear. As long as the rainclouds looming in the east held off I could do what I suffered such an early alarm for.
Quickly setting up the little scope I found conditions were not bad, though I did have to hop about a bit to avoid some drifting clouds. There was usually some part of the sky clear… Use it!
NGC 5286 – Bright and obvious, small at 2′ diameter, unresolved, round with a bright center, the 4.6 magnitude M Cen is 4′ southeast
M68 – Bright and obvious, 3′ diameter, rich, not resolved, round with a bright and well concentrated core
NGC 4361 – Small, bright and obvious, a round 1′ disk with a bright central star and well defined extents, no color noted, no other structure noted
NGC 5139 – A spectacular swarm of stars, very bright and easy to sweep up, large at 30′ diameter, resolved, extremely rich, well concentrated with a exceptionally dense center that fades radially into a fine mist of stars, one cannot fathom such a region of the cosmos, a place where our mere common sense fails utterly
Omega Centauri, NGC5139, sum of 31 x 1min exposures, AT6RC and Canon 60D
Close to astronomical dawn the clouds swept across the sky, a curtain to end the show. A few scattered raindrops had me hurrying to pack the gear back in the vehicle. I was considering what to do next when the rain came in ernest, a steady rain that washed over the windshield.
The drive back into the main section of the park proved fruitful as I found the usually crowded trails deserted in the early morning rain.
Made my first attempt at comet C/2023 A3 (Tsuchinshan–ATLAS) in the evening sky. I knew it would probably not be spectacular just yet, still low and lost in the glow, but it is there.
The comet was a binocular object only, just visible quite low in the golden sunset glow. A weather system passing the islands brought bands of cirrus to complicate the issue.
For this quick attempt I headed for the dry forest and wiliwili trees along Waikoloa Road just outside the village. A pretty evening even if the comet was not at its best just yet. Another attempt is planned for this evening if the clouds hold off, the comet should be 5° higher against that dark blue.
Yes, it is there in the photo. Lost in the golden glow low and just left of center…
Comet C/2023 A3 (Tsuchinshan–ATLAS) in the evening sky on October 11th, 2024
Along with much of the astronomy community I have been eagerly anticipating the arrival of Comet C/2023 A3 (Tsuchinshan–ATLAS) since its discovery last year.
Comet C/2023 A3 (Tsuchinshan–ATLAS) on the morning of September 29, 2024 from Mauna Kea
As orbital parameters and brightness estimates were calculated it became apparent that this comet had the potential to be one of the brightest comets in decades. Better yet, the show would be available to both hemisperes, not just for those south of the equator like Comet C/2006 P1 McNaught back in 2007.
As the comet passes perihelion, it’s close approach to the Sun on Sept 27th, it will briefly appear in the dawn. As maximum elongation conveniently happened on the weekend I planned an outing to meet this icy visitor.