Saturday, April 22, 2017

Solar Imaging Session - April 23, 2017

The sky this morning is clear and seeing condition is fair. AR2651 Sunspot Group in Ha wavelength is ejecting some flares from its main core while new AR2653 Sunspot Group is quiet. There is also a huge , wide dark filament in the NE limb. No big prominences visible except for a few small ones.

Friday, April 21, 2017

Solar Imaging Session - April 21, 2017

The sky this morning is very hazy and seeing condition is fair. I initially had a hard time focusing on the Sun as all are wobbly but after an hour, the seeing stabilizes a bit for me to image AR2651 Sunspot Group flaring up as well as 3 huge prominences visible both at NE and NW limb! The NE limb has 2 huge ones. one faint and the other bright while the best of the 3 is visible in the NW limb producing a beautiful loop prominence! The sky then clouded out again only for me to recapture AR2651 Sunspot Group in white light after lunch with fair seeing condition.

Heating Up My Old ATIK 16HR camera

Problem with the old but trusty ATK 16HR CCD camera is that it has a frost problem when it reaches maximum temperature of 25 deg C below ambient temperature. As the ccd front glass cover starts to frost, it will produce a small blur in the middle of the field of view thus hampering imaging session so one has to use a hair blower set at low setting to disperse the frost from the glass. But after another 30 mins or less, frost will return and one has to do again the dryer remedy and this is tedious. This wont occur if one is imaging in the city where temperature is high in our country. As long as the outside temperature doesnt fall below 25deg C, most of the time , one can get away with frost. But since one needs a dark sky to do serious deep sky imaging like in Caliraya, Laguna where average temp can go down to about 25 deg C in the summer and as low as 18 deg C during "Ber" months. This is trouble. But the modern CCD nowadays has a set temp mode which one can lessen the cold Peltier cooler. This is mostly remedied. But since I don't have resources to get a new one, I'm stuck with the use of dryer till I tested using a dew heater strip near the nosepiece of the camera and it does helps but problem is too many dangling cords around the camera and is prone to accidental snapping of wires thus when i hear ZWO made a cheap but reliable dew heater thin strip for their ASI cool camera. I tested one for my 16HR as their version is very thin but unfortunately, it doesn't fit into the back nosepiece of my 16HR as it is too thick and wide :( But i got to check that I can attach it directly to the T2 ring between the camera and the filter drawer or wheel and it is still close to the cover glass and the power is drawn together with the camera power by way of split wires with connector and after installing them last night. It looks like it is worth it and I hope to be able to test it on our upcoming Caliraya imaging session to see if it works under the condition there. Will give further updates after the test.

Thursday, April 20, 2017

Solar Imaging Session - April 20, 2017

The sky this morning is very cloudy and I had a hard time doing any imaging as the clouds are very pesky this morning! But after lunch , I was able to get another attempt at the Sun and seeing condition is fair. AR2651 Sunspot Group continues to grow a little bigger as it comes out of Wilson Effect. AR2651 Sunspot Group in Ha wavelength is very active and I'm expecting it to be even more active as the days comes toward this weekend in time for the Global Astronomy Month's SUNDay Free Solar Public Viewing event on April 23, 2017 (Sunday) 3:00-6:30pm PST at SM Mall of Asia By The Bay (SMBY). When I'm going to image the Sun in white light wavelength , seeing deteriorates but I still proceeded to image it despite the poorer condition.

Wednesday, April 19, 2017

Solar Imaging Session - April 19, 2017

The sky this morning is partly cloudy and I had a hard time imaging. As i concentrated on AR2651 Sunspot Group development, there is a large hedgerow prominence just above the NE limb. As i was compositing, I saw a faint large ring just beside the limb where AR2651 is located and I turn up exposure and behold! A huge looped prominence with the shape of a half heart emerging from the limb! I had to readjust camera position so that I can squeeze both prominences as well as AR2651 Sunspot Group and a large dark filament in one frame as too many clouds for me to take the risk to individually image all. Aside from that, I was also able to image AR2650 Sunspot Group as well as the Long Dark Filament in the Southern limb before I got obstructed by our damn roof :( So no white light image of AR2651 Sunspot Group :(

Tuesday, April 18, 2017

Solar Imaging Session - April 18, 2017

The sky this morning is partly clear but seeing condition is good. Former AR2644 Sunspot Group has emerged out of the eastern limb and is now designated AR2651 Sunspot Group. There is also a possibility of a new sunspot group developing above AR2651 Sunspot Group as well. It looks like the coming week will be exciting to monitor as everyone is probably hoping that AR2651 Sunspot Group will be giving a good show on both white light and Ha wavelength. The southern long dark filament is still visible. Numerous prominences also perked up the past few days solar boredom. AR2650 Sunspot Group continues to decay further as it nears the western limb.

Sunday, April 16, 2017

Solar Imaging Session - April 17, 2017

The sky this morning is hazy and seeing condition is fair. AR2650 Sunspot Group in Ha wavelength is almost calming down dramatically and the only prominent feature on the Sun right now is the long dark filament in tbe southern limb. No large prominences are also visible this morning. Very boring session :(