From the Horse's Mouth

Notes on pertinent Stars

Posted in 1 by theskinhorse on July 10, 2009

Notes that some may find interesting:

All from Wiki:

Since our galaxy is moving with respect to the cosmic microwave background radiation (CMB) in the direction of Hydra with a speed of 550 km/s, the sun’s resultant velocity with respect to the CMB is about 370 km/s in the direction of Crater or Leo

The Sun is currently traveling through the Local Interstellar Cloud in the low-density Local Bubble zone of diffuse high-temperature gas, in the inner rim of the Orion Arm of the Milky Way Galaxy, between the larger Perseus and Sagittarius arms of the galaxy.

The Sun lies close to the inner rim of the Milky Way Galaxy’s Orion Arm, in the Local Fluff or the Gould Belt, at a hypothesized distance of 7.62±0.32 kpc (24,800 lightyears) from the Galactic Center,[26][27][28][29] contained within the Local Bubble, a space of rarefied hot gas, possibly preduced by the supernova remnant, Gaminga. The distance between the local arm and the next arm out, the Perseus Arm, is about 6,500 light-years.[30]


Hydra is the largest of the 88 modern constellations, measuring 1303 square degrees. It has a long history, having been included among the 48 constellations listed by the 1st century astronomer Ptolemy. It is commonly represented as a water snake. In Japanese culture, it is also known as Nuriko, while in Chinese, it is known by the name Willow.


The Perseus Arm is a major spiral arm of the Milky Way galaxy.

The Milky Way is a barred spiral galaxy with four major arms and at least two minor arms or spurs. The Perseus Spiral Arm, with a radius of approximately 10,700 parsecs, is located between the Cygnus Arm and the Sagittarius Arm. It is named after its proximity to the constellation Perseus.

There is speculation that the minor Orion Arm, which includes the solar system and Earth, is a branch of the Perseus Arm, but this is unconfirmed.

The Perseus Spiral arm contains a number of Messier objects:

Please note the numerology.

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One Response

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  1. eleventhustwo said, on July 13, 2009 at 11:57 am

    *slurps up the pertinent informations and samples their bouquet*

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