PSR B1919+21
PSR B1919+21 is a pulsar with a period of 1.3373 seconds, and a pulse width of 0.04 second. It was the first radio pulsar discovered (on November 28, 1967 by Jocelyn Bell Burnell and Antony Hewish). The power and regularity of the signals was thought to resemble a beacon, so for a time the source was nicknamed "LGM-1" (for "Little Green Men").
The original designation of this pulsar was CP 1919 which stands for Cambridge Pulsar at R.A. 19h 19m. It is also known as PSR J1921+2153 and is located in the constellation of Vulpecula.
Discovery
In 1967, a radio signal was detected using the Interplanetary Scintillation Array of the UK Mullard Radio Astronomy Observatory by Jocelyn Bell and Antony Hewish. The signal had a 1.337302088331 second period and 0.04 second pulsewidth. It originated at celestial coordinates 19h 19mright ascension, +21° declination. It was detected by individual observation of miles of graphical data traces. Due to its almost perfect regularity, it was at first assumed to be spurious noise, but this hypothesis was promptly discarded. After that, the discoverers proposed an alternative explanation that the signal might be a beacon or a communication from an intelligent extraterrestrial civilization and named it Little green men 1 (LGM-1).
Rayne
Rayne may refer to:
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Rayne, Essex
Coordinates: 51°52′36″N 0°30′51″E / 51.8768°N 0.5142°E / 51.8768; 0.5142
Rayne is a village of about 3,000 residents in the Braintree district of Essex in the East of England.
It lies on the Roman road called Stane Street, about two miles (3 km) to the west of Braintree, which is the nearest town.
It used to be a more important settlement than Braintree in Norman times, although this has not been the case for a long time now.
Rayne has a playing field, a pub called The Swan, a village hall that overlooks the playing field, All Saints' church, a war memorial, a stream called Pod's Brook, and a small airfield. There are also the old manor house of Rayne Hall, and Old Hall; a previous Rectory. Rayne Hall was for a long time the home of the Capel family, who became Earls of Essex. In mediaeval times the Church was known for healing miracles: it was said that infertile women visiting the church were later able to conceive. A number of the churchyard memorials are made of cast iron: these were manufactured at the former foundry in The Street at around the end of the nineteenth century using a common mould into which individual letters were inserted to spell out the details.
Rayne (surname)
Rayne is a surname. Notable people with the surname include:
Fictional characters:
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