astroenthusiast

1 hour ago, astroenthusiast said:

This is our closest star, “The Sun”. The image of our planet was added to show the scale of “Earth” in comparison to several solar prominences.

The solar prominences were taken on April 12, 2021 at 12:54 PM ET, using a Lunt 80MT APO refractor, Daystar Quark Chromosphere H-Alpha filter and Televue 2.5x Powermate, with 200 sub-frames stacked. The camera used, an Altair Hypercam 174M mono CMOS camera.

Thank you @markse68

This is our closest star, “The Sun”. The image of our planet was added to show the scale of “Earth” in comparison to several solar prominences.

The solar prominences were taken on April 12, 2021 at 12:54 PM ET, using a Lunt 80MT APO refractor, Daystar Quark Chromosphere H-Alpha filter and Televue 2.5x Powermate, with 200 sub-frames stacked. The camera used, an Altair Hypercam 174M mono CMOS camera.

The image of  the Leo Triplet, M66 was taken using 31 sub-frames at 60 second exposures each, with a camera temperature set at -25C.

The telescope used, Explore Scientific ED165 mm APO F/7 refractor and ASI2600 CMOS OSC camera & Optolong -L Pro filter.
Note: The bright star HD98388 is located lower left of NGC 3628,

The starless image of Messier 104 was captured using 46 sub-frames at 60 second exposure each. The camera gain was set at 230, with a temperature of -25C.

The amateur equipment used: Explore Scientific ED165 mm APO refractor at F/7. The camera used: ASI2600 CMOS OSC & Baader – Moon & Sky-glow filter. Polar alignment and tracking were achieved using plate solving.

Astrophotography software used: Astro Pixel Processor & Adobe photoshop used for image processing and removal of background stars.

It is that time of year again, galaxy season! The Sombrero galaxy also designated Messier 104, located at the southern edge of the Virgo constellation and Corvus, a small constellation in the Southern Celestial Hemisphere.

M104 lies at 28 million light years from Earth and boast 800 billion suns. The Sombrero galaxy is easily seen through small telescopes and has a bright magnitude of 8.

The image of Messier 104 was captured using 46 sub-frames at 60 second exposure each, using a Baader - Moon & Sky glow filter.

Hi Tan, no unfortunately I never got into facebook, but I am on LinkedIn.

Thank you for all the likes!! I'm looking forward to return the favor! Oh, btw, try investing in Pixinsight, and Adobe Photoshop (subscription). Astro Pixel Processor is ok too, but it looks like PixInsight is the best, IMO. Just keep practicing. What skies are you imaging in? My skies are Bortle 5 - 6.

12 hours ago, Tan Zhi Qi said:

@astroenthusiast you're most welcome! Really hope I can get pics yours soon! 

You will, takes some practice. My pictures are no way the best. I have more bad images than good. Trial and error to develop the skills needed for this hobby. Oh, and lots of patience!

Correction made to the Siamese twins designation. 

Note: On the Siamese twins, there is an error. The designation should read, from left to right: NGC 4568 and NGC 4567.

The image of the galaxy M87 (center, right) was captured using 200 sub-frames at 30 second exposures each, with a camera gain of 220. Some light pollution is still present. The camera temperature was set at -19.5C.

The telescopic instrument used, Explore Scientific ED 165 mm APO refractor, and 0.65x focal reducer & flattener. There are multiple other galaxies present.

The monstrous galaxy M87, home of several trillion stars is located 54 million light-years away, made history when the first image of a black hole was captured that lies at its center.

A team of more than 200 astronomers in 20 different countries used eight telescopes, in unison to form what is called the Event Horizon Telescope Array, which also included the Atacama Large Millimeter/Submillimeter Array (a 66-telescope array in Chile).

The insert of the black hole was added as an example and is not part of the actual image taken.

The image was captured using 200 sub-frames at 30 second exposures each, with a camera gain of 220. Some light pollution is still present in the additional image. The camera temperature was set at -19.5C.

The telescopic instrument used, Explore Scientific ED 165 mm APO refractor, and 0.65x focal reducer & flattener. There are multiple other galaxies present, just a few mentioned in the image taken.

@Tan Zhi Qi Thanks again!!

@Tan Zhi Qi Thank you!!

The image of Messier 42 was captured using 10 sub-frames at 30 second exposures each, using a 102 mm APO refractor at F/7. The camera used in the image train, an ASI2600 CMOS OSC.

Processing software used: Astro Pixel Processor to stack the sub-frames, PixInsight to stretch & process the image and Adobe photoshop to finalize process.

NGC 4565, also known as the Needle Galaxy.  Taken with a ES 165 mm APO refractor and Starizona 0.65x focal reducer & flattener. 

Found a space ly to mpc converter, puts it at around 19.292 mpc away. 

On 23/03/2021 at 03:17, skybadger said:

30.7MP equates to 95 M ly since a parsec is 3.2 ly. IIRC. 

I need to fix the numbers, let me try again and thank you so much for catching this!!!

On 23/03/2021 at 03:17, skybadger said:

30.7MP equates to 95 M ly since a parsec is 3.2 ly. IIRC. 

I've calculated wrong. I originally picked up the post from https://www.nasa.gov/feature/goddard/2018/astronomers-find-possible-elusive-star-behind-supernova

The amateur-astronomical equipment used, Explorer Scientific F/7, 165mm Triplet APO refractor, a 0.75x focal reducer and ASI2600 CMOS color camera. All stars and galaxies were processed out.

The galaxy NGC 3938, lies at 30.7 megaparsec away, putting it at around 65 million light years from our planet. In 2017 a blue supergiant star, located in NGC 3938 went supernova and exploded with the mass of 50 suns in what Astronomers call the force of a Type 1C category supernova explosion!

The amateur-astronomical equipment used, Explorer Scientific F/7, 165mm Triplet APO refractor, a 0.75x focal reducer and ASI2600 CMOS color camera. All stars and galaxies were processed out.

The amateur-astronomical equipment used, an Explorer Scientific ED165-FPL53 APO Triplet Refractor with Ohara FPL53 ED (Extra-Low-Dispersion) glass. Equatorial mount used, Sky-Watcher EQ8-R Pro, with a ZWO ASI2600 CMOS color camera. Polar alignment and guiding achieved with a QHY-Polemaster camera and plate solving (astrometry.net). Imaging software used, AstroPixel.

The Great Globular Cluster in Hercules, also referred to as Messier 13. The Hercules Globular Cluster is estimated to be over 11 billion years old and 6,800 parsecs from our planet, with a linear diameter of 145 light years. If you glance over to the right of M13, lies the galaxy NGC 6207 which is located around 30 million light years from Earth.

The image was captured using 31 sub-frames at 60 second exposures each, with a camera temperature set to - 32.2 Celsius. The amatuer-astronomical equipment used, Explorer Scientific ED165-FPL53 APO Triplet Refractor, Sky-Watcher EQ8-R Pro mount, ZWO ASI2600 CMOS color camera, QHY-Polemaster camera for polar alignment and plate solving.

The Black Eye galaxy, located in Coma Berenices is 17 million light years from Earth. Messier 64 has another nickname, the Evil Eye Galaxy. Messier 64 also carries a designation of NGC 4826 and was discovered by English Astronomer Edward Pigott in 1779.

The image was taken using 9 sub-frames at 600 second exposures each. Polar alignment was achieved using a QHY - Polemaster camera & Plate Solving for guiding.

The Sunflower galaxy, image was captured using 9 sub-frames at 300 second exposures each. The instrument used, a 165 mm APO refractor and CMOS color camera. The gain was set a bit to high for this particular celestrial object, 224. The camera temperature was set at -29 Celsius. The mount used, a Sky-Watcher EQ8 R Pro, equatorial mount. Polar alignment was obtained using a QHY - Polemaster camera and plate solving for guiding.

Image reprocessed.

Instruments used, Explorer Scientific ED165-FPL53 (FPL-53 ED Glass) Air-Spaced Triplet Refractor, and ASI2600 MC Pro color - CMOS camera. Polar alignment obtained using Plate Solver - Astrotortilla & SharpCap.