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Friday, 30 January 2015

Astronomy Lecture. Observing the night sky. Planets. Reasons to like astronomy.

Computerized Telescope Skymax-127-GO-TO 1500.

Astronomy Essay. Part Three. Planets.

Of course, to observe the sky should you you would need just a pair of binoculars or a small telescope. But if you use a telescope, you will still have better results in your observation. You can enjoy a higher magnification of the planets or the Andromeda galaxy, etc ...
If you have a larger budget there are now computerized telescopes that have a control screen where you can achieve anything you want to see from a list of items, by clicking, and the telescope will go directly to the that region of the sky, as long as the telescope is installed and set correctly. These are called go-to telescopes. They almost "spoils" the fun by looking for objects in the sky manually, when you had to go from star to star to reach the desired object. Now just click the screen and telescope goes to it. The good part is that these computerized telescopes gathers a number of more admirers of astronomy enthusiasts.

Some telescopes, shows the image overturn and others do not. Those that do not give you the image upside down, are good and land observing, eg observing wild life, or spy on neighbors, and these images you want to see them standing not overturned. But on observing astronomical objects is not so important whether or not the image is upside down.

The most important reason when people wants to buy a telescope, is planets. What planets are seen through the telescope, how you see them, and what you can see on them in particular?

The planet Saturn through telescope. Date: March 24, 2012.

At Saturn, for example, you can see the ring which is the most important feature of this planet. Without the ring, that is not Saturn.
If you have a good eyesight, or a better telescope, you can see the ring, and that the ring is divided in two by a black band. This is the "Cassini Division".

Jupiter through telescope. Date: November 13, 2013.

At Jupiter, you can see the bands surrounding it. Not only the bands can be observed, but also a huge storm, or the "Great Red Spot" (GRS), which is already known to exist for over 300 years because there are reports about this stain spot then.
If you are lucky, you can see one of the largest satellites of Jupiter, called Galilean satellites, projecting the shadow on the planet. During the passage by the face of the planet, you may not distinguish the satellite if it has the same color as the planet, but you can still see its shadow on the planet.
You can see the satellites moving from night to night or even from hour to hour around Jupiter, especially on the satellites (moons) which are orbiting at a very short distance from Jupiter, as is the case of Io.

Video capture Venus illuminated 28%, 29 April 2012.

On the observation of Venus is another story. This planet is closer to the Sun than we are, and therefore we can see its phases, like those of our Moon. On the planets that are farther from the Sun,  we can not see this phenomenon, because these are seen from the Earth almost full, or lit almost 100%, but Venus and Mercury are the only planets closer to the Sun than we are (more inside) and therefore we can see them when they are on their orbit on the other side of the Sun with respect to the Earth, ie the Sun is between us and Venus, but we also see when the planets are on the same side in their orbit with Earth, ie the Sun is not between us and Venus.

In the next article, we will talk about the stars.

Wednesday, 28 January 2015

Astronomy through Telescope. Craters on the Moon in Registax: Moretus.

68 video frames in Registax.
240 video frames in Registax.
616 video frames in Registax.
1 video frames in Registax.

To be short, in the images are craters located on the south of the Moon as we see from Earth, near its edge (the terminal).

The crater Moretus (114 km) is emphasized here and its neighboring craters.
Moretus crater at the lunar south, (the largest in the center), is seen here more oblique than usual due to the Moon's position (bent forward). At the bottom of it, in images (north of) are two craters bonded together: Cysatus and Gruemberger (94/49 km).

Moretus is easily observed through the telescope sometimes, but other times its difficult. This is due to libration of the Moon which is found sometimes inclined forward and sometimes on the back. The best time to observe the crater Moretus, is when the Moon is bent back, so the lunar south is facing us.
Simple video captures, are here.
You can view video of which I took these pictures, here.


Info Moretus.
Coordinates70.6°S 5.5°WCoordinates: 70.6°S 5.5°W
Diameter114 km
Depth5.0 km
Colongitude7° at sunrise
EponymThéodore Moretus

616 video frames in Registax.

Moon Age: 9.05 days
Phase: 70.5% (0% = New, 100% = Full)
Distance: 399.221 km


Optics (telescope or lenses): Celestron C8-Newtonian telescope, eyepiece 20mm Plossl, 2x barlow
Mount: CG5 (EQ5)
Camera: Sony CX130
Filter: no
Date: 10/03/2014
Location: Baia Mare, Romania
Processing: Registax,  FastStone Image Viewer




Monday, 26 January 2015

Registax: Montes Apenninus.

130 video captures, in Registax.

This mountainous area called Montes Apenninus after Apennini mountains in Italy. This area includes several seas of which these mountains relates, as Mare Imbrium, Mare Vaporum, Mare Serenitatis, Sinus Aestuum and Palus Putredinis. Other prominent features of the neighborhood are Autolycus (39 km) and Archimedes (83 km) craters.
Among the notable peaks of these mountains is Connon crater (22 km).
The image above is a Registax processing of a video.

Moon Age: 9.05 days
Phase: 70.5% (0% = New, 100% = Full)
Distance: 399.221 km


Optics (telescope or lenses): Celestron C8-Newtonian telescope, eyepiece 20mm Plossl, 2x barlow
Mount: CG5 (EQ5)
Camera: Sony CX130
Filter: no
Date: 10/03/2014
Location: Baia Mare, Romania
Processing: Registax,  FastStone Image Viewer



Montes Apenninus. Image of 11 May 2011.


 

 
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