DEC meaning in Space Science ?

Answer:

What is Declination mean?

In astronomy, declination (abbreviated dec; symbol δ) is one of the two angles that locate a point on the celestial sphere in the equatorial coordinate system, the other being hour angle. Declination's angle is measured north or south of the celestial equator, along the hour circle passing through the point in question.

The root of the word declination (Latin, declinatio) means "a bending away" or "a bending down". It comes from the same root as the words incline ("bend toward") and recline ("bend backward").

In some 18th and 19th century astronomical texts, declination is given as North Pole Distance (N.P.D.), which is equivalent to 90 – (declination). For instance an object marked as declination −5 would have an N.P.D. of 95, and a declination of −90 (the south celestial pole) would have an N.P.D. of 180.

reference

Full Form	Category
Diethyl Carbonate	Academic & Science
Distance Education Consortium	Academic & Science
DECiduous	Academic & Science
Decatur (il)	Airport Code
Data Entry Clerk	Business
Dana Energy Company	Business
Digital Equipment Company	Business
Dell EMC Certified	Business
Design, Execute, Control	Business
District Export Council	Business
Domiciled European Community	Business
Design Execution Council	Business
Digital Equipment Corp	Business
Direct Evaporative Cooling	Chemistry
Diversified Education Curriculum	Community
Detroit Economic Club	Community
Design Educators Community	Community
Distance Education Centre	Community
Donnellson Entertainment Committee	Community
District Effectiveness and Compliance	Community
Directory Expert Conference	Community
Drug Endangered Children	Community
Disasters Emergency Committee	Community
Development Experience Clearinghouse	Community
Douglas Education Center	Community
Department Evaluation Committee	Community
Daily Effective Circulation	Community
Digital Extended Command (proposed T.30 extended negotiations)	Computer and Networking
Decimal	Computer Assembly Language
Decrement	Computer Assembly Language
Darn Expensive Component	Computer Hardware
Data Exchange Center	Computing
Digital Ethernet Personal Computer	Computing
Digital Electronic Computer	Computing
Decryption	Computing
Decompressor	Computing
Double Error Correction	Computing
Decoding Circuit	Computing
Directory Experts Conference	Computing
Department of Engineering Cybernetics	Computing
Decomposer	Computing
Dynamic Event Creator	Computing
Delphi Encryption Compendium	Computing
Decoder	Computing
Dark Energy Crystals	Cryptocurrency
Decentr	Cryptocurrency
Directory Entry Code	Database Management
Decoded File	File Type
Division for Early Childhood	General
Dependable Economical and Capable	General
Darico Ecosystem Coin	General
Deaf Emergency Calling	General
Drug Enforcement Commission	General
Driver Education Certificate	General
Driver Education Completion	General
Driver Education Center	General
District Executive Committee	General
Downhill, Etc., Crew	General
Do Expect Cuts	General
Delta Epsilon Chi	General
Dolphin Energy Club	General
Designed and Engineered Composites	General
Digital Epistemological Cycles	General
Design Estimating and Construction	General
Defects Expiration Contamination	General
Domina Easter Convention	General
Downtown Event Center	General
Driving Experience Control	General
Diesel Electronic Control	General
Diesel Emissions Control	General
Driver Education Course	General
Driver Eligibility Certificate	General
Digital Engine Control	General
Dead End Cruisers	General
Digital Electronic Controller	General
Daimler Enthusiasts Club	General
Delco Electronics Corporation	General
Driving Experience Centre	General
Dallas Entrepreneur Center	General
Dublin Entrepreneurial Center	General
Discounted Eligible Costs	General
Desiccative Evaporative Cooling	General
Digital Entertainment Center	General
Department of Environment and Conservation	Governmental
Display Energy Certificates	Governmental
Display Energy Certificate	Governmental
Distance Education Council	Governmental
District Emergency Coordinator	Governmental
Department of Environmental Conservation	Governmental
Department of Environmental Control	Governmental
Drug Evaluation and Classification	Governmental
Dominion Executive Committee	Governmental
Ductible Employee Contribution	Governmental
Disaster Emergency Committee	Governmental
Division of Education and Communication	Governmental
Delaware Electric Cooperative	Governmental
DEME Environmental Contractors	Governmental
Direct Energy Conversion	Governmental
DELHI CANTT	Indian Railway Station
Digital Equipment Corporation	Information Technology
Department Emergency Coordinator	Jobs
Diethylcarbamazine Citrate	Medical
Deceased	Medical
Decrease	Medical
Disability Empowerment Center	Medical
Desquamated Epithelial Cell	Medical
Di Ethyl Carbamazine	Medical
Diagnostic Evaluation Center	Medical
DECompose	Medical
Dendritic Epidermal Cell	Medical
Development and Evaluation Committee, subsumed by NICE	Medical
Diagnostic Episode Cluster	Medical
Disasters Emergencies Committee	Medical
Doppler echocardiography	Medical
Duct Epithelial Cells	Medical
Dental Education Clinic	Medical
December	Month of Year
Decatur Airport, Decatur, Illinois USA	Regional
Alaska Department of Environmental Conservation	Regional
Different Error Costs	Softwares
Declination	Space Science
Decatur Airport	Transport & Travel