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Abbreviations, etc.

MishMich

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MishMich

MishMich

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Following a recent discussion, this is a starter list of abbreviations, synonyms, acronyms and nicknames connected with astronomy. The idea is just to indicate what things people often use without thinking signify, so that people unfamiliar with them can look them up on-site.

These are a few terms that came off the top of my head, and they could be updated with external links to sites that explain them in more depth. Feel free to add any suggestions, additions, expansions, corrections.

M.

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MishMich

MishMich

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v. 0.1

Common terms:

OTA - Optical Tube Assembly

Newt - Newtonian reflector telescope

Frac - Refractor telescope

GEM - German Equatorial Mount

Alt-Az - Altitude-Azimuth (mount)

Refractors:

ED - Extra-low Dispersion (glass)

Apo - Aprochromat(ic)

Achro - Achromat(ic)

Doublet - (2 lens assembly)

Triplet - (3 lens assembly)

Catadioptric optical systems:

SCT - Schmidt-Cassegrain telescope

Mak - Maksutov-Cassegrain telescope

RCT - Ritchey-Chrétien telescope

SNT - Schmidt-Newtonian telescope

KCT - Klevtsov-Cassegrain telescope

Astrophotography, imaging, video related:

DSLR - Digital Single Lens Reflex

CCD - Charge-coupled Device

LCD - Liquid Crystal Display

LED - Light-emitting Diode

CMOS - Complementary metal–oxide–semiconductor

CCTV - Closed Circuit Television

HDD - Hard Disk Drive

USB - Universal Serial Bus

RS232 - Serial Port/cable

DVD - Digital Versatile Disk

HD - High Definition

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Starman

Starman

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I was under the impression that DVD means nothing. There's no official definition for it from the DVD consortium and as it's an international abbreviation spanning several languages, the official meaning of DVD is nothing - officially it's just 3 letters.

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Capricorn

Capricorn

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Before war breaks out over DVD:D:D:D, I think that both options are correct. It is an abbreviation that is commonly used for both options suggested here.

So simply take your choice with whichever one :):icon_scratch: you are most comfortable with.:D:hello2:

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MishMich

MishMich

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v.0.2

Astronyms

Common terms:

OTA - Optical Tube Assembly
Newt - Newtonian reflector telescope
Frac - Refractor telescope
Dob - Dobsonian mounted reflector telescope
EP - Eyepieces
DSO - Deep Sky Object(s) / Deep Space Object(s)
FOV - Field Of View
bins - binoculars

Mounts & Guiding:

GEM - German Equatorial Mount
Alt-Az - Altitude-Azimuth (mount)
OAG - Off Axis Guider
RA - Right ascention
DEC - Declination

Refractors:

ED - Extra-low Dispersion (glass)
Apo - Aprochromat(ic)
Achro - Achromat(ic)
Doublet - (2 lens assembly)
Triplet - (3 lens assembly)

Catadioptric optical systems:

SCT - Schmidt-Cassegrain telescope
Mak - Maksutov-Cassegrain telescope
RCT - Ritchey-Chrétien telescope
SNT - Schmidt-Newtonian telescope
KCT - Klevtsov-Cassegrain telescope

Filters, Flatteners, Reducers:

FF - Field Flattener
FR - Focal Reducer
CaK - Calcium K Line
H-A/Ha - Hydrogen Alpha
HB - Hydrogen Beta
OIII - Oxygen Three
SII - Sodium Two
LPR - Light Pollution Reduction
CLS - blocks light from street lamps, passes other visible light and H-alpha emissions.

Astrophotography, imaging, video related:

DSLR - Digital Single Lens Reflex
CCD - Charge-coupled Device
LCD - Liquid Crystal Display
LED - Light-emitting Diode
CMOS - Complementary metal–oxide–semiconductor
CCTV - Closed Circuit Television
HDD - Hard Disk Drive
USB - Universal Serial Bus
RS232 - Serial Port/cable
HD - High Definition

People, positions, organisations, places:

PI - Principle Investigator
SPM - Sir Patrick Moore
FLO - First Light Optics
SGL - StarGazersLounge
TS - TeleskopService

Accessories

OAG - Off Axis Guider
FF - Field Flattener
FR- Focal Reducer
CaK - Calcium K Line
H-A/Ha - Hydrogen Alpha
HB - Hydrogen Beta 
OIII - Oxygen Three
SII - Sodium Two
PI - Principle Investigator 

Common Internet Acronyms

FWIW For what its worth

BTW By the way
IIRC If I remember correctly
IMHO In my honest opinion 

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MishMich

MishMich

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I've integrated the suggestions, and added a couple more. I couldn't find what 'CLS' stands for. Please restrict suggestions to astronomy-related, as there are sites online that give lists of more general stuff.

M

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arad85

arad85

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I was under the impression that DVD means nothing. There's no official definition for it from the DVD consortium and as it's an international abbreviation spanning several languages, the official meaning of DVD is nothing - officially it's just 3 letters.
Not according to the DVD forum (official homepage of the DVD Consortium). DVD Primer It's Digital Versatile Disc.
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stev74

stev74

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This is a great post for newbies, I think it would make a really handy 'Sticky'

Thought I'd add a few -

M (1 to 110) - Messier Catalogue (by Charles Messier)

NGC 7,840 objects - New General Catalogue (by J.L.E. Dreyer) also includes IC I & IC II - a further 5,326 objects

C (1 to 109) Caldwell Catalogue (by Sir Patrick Moore) (SPM :))

RDF - Red Dot Finder

HTH (which I also thought was 'Hope This Helps')

Cheers

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