Thursday, 8 February 2018

Asteroid passes earth on February 9th

Asteroid 2018 CB, will be passing earth tomorrow morning. The asteroid is a 25-meter sized rock, which will be coming nearer to a point of 70000 kilometers from the surface of the earth.

Friday, 2 February 2018

Don't miss these Astronomical events in this February

February 2018 welcomes us with good opportunities to be a part of many different astronomical events. Planet Saturn comes in the view on 11th. Mars and Antares will be paving their sight the very next day and There are will be a new moon and a partial solar eclipse coming in the mid-February. 

Monday, 29 January 2018

New planet discovered in the Hyades star cluster

A group of scientists lead by David R. Ciardi from Caltech and Ian J. M. Crossfield from MIT have collectively reported the discovery of a Neptune-size planet in the Hyades Cluster. They have named it as K2-136A c.

Sunday, 28 January 2018

AstroSat discovers strange polarisation in the Crab Nebula


AstroSat is India’s multi-wavelength space telescope. Recently it successfully accomplished the extremely difficult task of measuring X-ray polarisation. The paper was published in ‘Nature Astronomy’.

Saturday, 27 January 2018

What is Super Blood Blue Moon of January 31st,2018 ?

There is a Super Blood Blue Moon coming this weekend. So, let's look what it is briefly.

What is a full moon?
The full moon is a phase of the moon when the Moon appears fully visible from Earth. This occurs when the Earth is located directly between the Sun and the Moon, that is a Lunar Eclipse.

What is a blue moon?
If there are two full moons in a month, then the second one is called the blue moon.

Why it is 'blue'?
It Simply originated from certain usages in literature and astronomers of olden times. It is believed that, someone might have observed this through a polluted sky, such that the moon would have seen bluish.

What is a supermoon?
supermoon is either a full moon or a new moon which is occurring when the moon is closest to earth in its orbit.

Closest to earth means?
The moon orbits Earth in a slightly elliptical orbit. So, the moon would be seen very near at some point, very far at some point as it goes around the earth. So, whenever the moon is very close, we can see it much larger in shape and brighter; 14% larger and 40% brighter.

So, Supermoon: Full moon / New moon with the shortest distance between earth and moon.

What is Blood moon?
The blood moon is nothing, but a red coloration we see over the moon. It is caused due to the shadow of the earth most probably during a lunar eclipse. It isn't actually a scientific term or usage, but a phrase we usually use, whenever we see the moon in red appearance due to the darkness falling over it.

When did we saw this last time?
We are believing that it has occurred before 150 years ago on March 31, 1866

Where to see this better in India?
The southern part of India, especially Kerala state is the best part to view this.

When will be this visible in India?
It is expected to see between 4pm to 9pm, January 31,2018

Where are the observatories in Kerala?
There are Planetariums at Kozhikode (Calicut) and Thiruvananthapuram (Trivandrum)

When is the next chance to see this phenomenon?
December 31, 2028

Wednesday, 24 January 2018

Asteroid 2002 AJ129 will make a close approach to Earth on Feb 4

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Asteroid 2002 AJ129 will make a close approach to Earth on Feb. 4, 2018 at 1:30 p.m. PST (4:30 p.m. EST / 21:30 UTC). At the time of closest approach, the asteroid will be no closer than 10 times the distance between Earth and the Moon (about 2.6 million miles, or 4.2 million kilometers).
2002 AJ129 is an intermediate-sized near-Earth asteroid, somewhere between 0.3 miles (0.5 kilometers) and 0.75 miles (1.2 kilometers) across. It was discovered on Jan. 15, 2002, by the former NASA-sponsored Near Earth Asteroid Tracking project at the Maui Space Surveillance Site on Haleakala, Hawaii. The asteroid’s velocity at the time of closest approach, 76,000 mph (34 kilometers per second), is higher than the majority of near-Earth objects during an Earth flyby. The high flyby velocity is a result of the asteroid’s orbit, which approaches very close to the Sun -- 11 million miles (18 million kilometers). Although asteroid 2002 AJ129 is categorized as a Potentially Hazardous Asteroid (PHA), it does not pose an actual threat of colliding with our planet for the foreseeable future.
“We have been tracking this asteroid for over 14 years and know its orbit very accurately,” said Paul Chodas, manager of NASA’s Center for Near-Earth Object Studies at the Jet Propulsion Laboratory, Pasadena, California.  “Our calculations indicate that asteroid 2002 AJ129 has no chance — zero — of colliding with Earth on Feb. 4 or any time over the next 100 years.”
JPL hosts the Center for Near-Earth Object Studies for NASA's Near-Earth Object Observations Program, an element of the Planetary Defense Coordination Office within the agency's Science Mission Directorate.

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