It has been many years since I last stood atop the summit of Mauna Kea, the true summit that is. A couple decades ago, while on vacation I walked to the summit as a tourist. All these years of driving past on the way to work, I have not stopped and taken the short walk to the summit of Mauna Kea from the road, until now.
Broken gear on a weekend, driving up the mountain by myself. Once the gear was fixed I was free to head back down. Without a vehicle full of guys just wanting to go home after a full day at work, I was free to stop and take a walk with the camera…
The trail to the summit of Mauna Kea outlined with stone
Star parties at Hale Pohaku are very informal affairs. You never really know who is and who is not going to show up. We just don’t plan that much.
It had just been too long, I had not had a good night out with the telescope for months. This dark moon Saturday was not going to be missed, I packed up Deep Violet and headed for The Mountain. I knew a few folks would be there, certainly Cliff and Tony. The rest of the folks were a surprise to me. As the evening progressed more and more ‘scopes showed up, a few more familiar voices in the darkness.
Almost all of the big dobsonian telescopes to be found on Hawai’i show up at the VIS for the night.We had picked a decent night. The transparency was fairly good, and the seeing was great. We enjoyed views of Jupiter better than I had seen in quite a while, Probably years. There was the red spot, moon shadows, even the moon Io could be clearly seen transiting the disk.
The only real issue was the wind, it was annoying. A couple of us moved our telescopes into the patio area of the MKVIS, where the building offered some shelter at the expense of blocking some of the sky.
There is a battery of webcams atop Mauna Kea, a few of which feature good sensitivity and are useful after dark. The telescope operators depend on these cameras to evaluate conditions around the telescopes during observation. From the warm control rooms, they can see clouds overhead, or even fog blowing over the summit.
The imagery from the Mauna Kea cameras is publicly available, a very useful feature to those of us who live and work around the mountain. But there are others use this video, looking for things that those who install and operate the cameras did not intend.
A video showed up recently, purported to show a UFO maneuvering over Mauna Kea. The camera is again the CFHT Cloudcam, a very nice camera installed to give CFHT operators a good look at approaching weather. The high quality images of this camera have occasionally shown odd events in the sky. Back in June the camera recorded a strange expanding halo of light that was eventually linked to the launch of a Minuteman Missile from Vandenburg AFB.
Purported UFO video from the CFHT CloudcamI have embedded the latest video to the right…
OK, just a dot of light that appears then fades, not very impressive. Particularly interesting is that the dot of light does not move with respect to the camera. To me this suggests some nearby fixed source of light that entered the camera from another angle. Another reasonable possibility is a geostationary satellite glinting in the sun. Making this out to be a UFO is a stretch by any measure.
Rush hour for Mauna Kea is just before sunset. This is when the day crews are coming down, while the summit tours and telescope operators are heading up.
The timing of this rush can be variable depending on time of year and what time sunset occurs. Twice a year this rush is at its worst, when everyone heads up and down at the same time. This can lead to some difficult driving conditions… A lot of vehicles on a road that can be challenging. A cloud of fine cinder dust and a setting Sun just adding to the confusion…
Fine cinder dust creating a hazardous “dust out” condition on the Mauna Kea summit access road
Mauna Kea is simply a great place to shoot astrophotos from. Dark, clear skies with typically good seeing. Unlike some mainland locations there is a distinct lack of aircraft overhead. I am not sure how many shots I have had ruined by the bright anti-collision strobes crossing through the frame when shooting from locations in Arizona.
There are hazards to shooting photos here that do not commonly exist elsewhere. I was unpleasantly surprised when reviewing the take the next morning to find brilliant yellow lines through a hour and a half of exposures taken of the Cygnus region. The material is otherwise great, the makings of a nice shot, except for this one little issue. There are ways of suppressing artifacts like this when processing, but the beam is so bright I am not certain they will work all that well.
Worse, I checked the schedule, the offending laser is coming from Keck 2 AO, a system I work on.
The observatories have a system in place to deal with this issue. There are four operational lasers on the mountain, Keck 1 and Keck 2, Subaru and Gemini. Each optical observatory using a laser maintains a server that posts their laser location, status, and calculates the position of each beam in the sky. This can be queried by the other observatories to check if the beam crosses the field of view. A set of rules has been negotiated to determine who has right of way, usually who is on target first.
Obviously this computer system does not take into account my little telescope shooting photos from Hale Pohaku. If I had known I could have called Heather and asked her to shutter her laser, I was on target first. Being the kind soul she is, she would probably laugh with me.
Rough processing of a single frame, Cygnus region, with the Keck 2 Adaptive Optics laser crossing through the frame
