That's not the best deal.
When Discount Mags runs their Top 100 sale (4x a year) , Astronomy is $13.99 a year.
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DiscountMags is running their Top 100 Magazine Sale [discountmags.com], Runs through EOD Monday, January 15th
Entertainment
Us Weekly (1 Year: $19.99, 2 Years: $39.98, 3 Years: $59.97, 4 Years: $79.96)
Star (1 Year: $19.99)
OK! (1 Year: $19.95, 2 Years: $39.90, 3 Years: $59.85)
People (6 Months: $24.99, 9 Months: $39.99, 1 Year: $49.99)
Entertainment Weekly (6 Months: $9.99, 1 Year: $19.95, 2 Years: $27.95)
CBS Watch! (1 Year: $3.95, 2 Years: $7.90)
Home
Family Handyman (1 Year: $8.99, 2 Years: $19.98, 3 Years: $29.97, 4 Years: $39.96)
Architectural Digest (1 Year: $6.95, 2 Years: $13.90, 3 Years: $20.85)
Good Housekeeping (1 Year: $4.95, 2 Years: $9.90)
Dwell (1 Year: $6.99, 2 Years: $9.99)
Garden & Gun (1 Year: $4.99, 2 Years: $9.98)
Country Living (1 Year: $7.99, 2 Years: $15.98, 3 Years: $23.97, 4 Years: $31.96)
Elle Decor (1 Year: $4.95, 2 Years: $9.90, 3 Years: $14.85, 4 Years: $19.80)
House Beautiful (1 Year: $8.95, 2 Years: $17.90, 3 Years: $26.85, 4 Years: $35.80)
HGTV (1 Year: $12.95, 2 Years: $25.90)
Real Simple (1 Year: $11.95, 2 Years: $22.95)
Extreme How-To (1 Year: $6.99)
This Old House (1 Year: $6.99)
Southern Living (1 Year: $17.95, 2 Years: $24.95)
Coastal Living (1 Year: $11.95, 2 Years: $14.95)
Auto
Car and Driver (1 Year: $4.95, 2 Years: $9.90, 3 Years: $14.85, 4 Years: $15.00)
Motor Trend (1 Year: $4.95, 2 Years: $9.90, 3 Years: $14.85, 4 Years: $15.00)
Road & Track (1 Year: $4.95, 2 Years: $9.90, 3 Years: $14.85, 4 Years: $15.00)
Cooking
Bon Appetit (1 Year: $4.95, 2 Years: $9.90, 3 Years: $14.85)
Saveur (1 Year: $4.95, 2 Years: $9.90, 3 Years: $14.85)
Food Network (1 Year: $7.95, 2 Years: $15.90, 3 Years: $23.85)
Clean Eating (1 Year: $12.99, 2 Years: $19.99)
Cook's Illustrated (1 Year: $7.95, 2 Years: $15.90)
Cooking Light (1 Year: $11.95, 2 Years: $14.95)
Cook's Country (1 Year: $7.95, 2 Years: $15.90)
Food & Wine (1 Year: $11.95, 2 Years: $15.95)
Women
Women's Health (1 Year: $4.95, 2 Years: $9.90, 3 Years: $14.85)
Glamour (1 Year: $4.95, 2 Years: $9.90, 3 Years: $14.85, 4 Years: $15.00)
Vogue (1 Year: $5.99, 2 Years: $11.98, 3 Years: $17.97)
Allure (1 Year: $4.95, 2 Years: $9.90, 3 Years: $14.85)
Vanity Fair (1 Year: $12.99, 2 Years: $25.98, 3 Years: $38.97)
W (1 Year: $4.99, 2 Years: $9.98, 3 Years: $14.97)
InStyle (1 Year: $6.99)
Family & Kids
Thomas & Friends (1 Year: $14.99, 2 Years: $29.98)
American Girl (1 Year: $15.95, 2 Years: $29.95)
Sports Illustrated Kids (1 Year: $18.95, 2 Years: $29.95)
Peppa Pig (1 Year: $12.99, 2 Years: $25.98)
Ranger Rick Jr. (1 Year: $18.99, 2 Years: $34.99)
Tech/Sci
Wired (1 Year: $4.95, 2 Years: $9.90, 3 Years: $14.85)
Popular Science (1 Year: $4.95, 2 Years: $9.90, 3 Years: $14.85)
Discover (1 Year: $14.99, 2 Years: $29.98, 3 Years: $44.97)
Consumer Reports (1 Year: $19.99)
Popular Mechanics (1 Year: $8.99, 2 Years: $17.98, 3 Years: $26.97, 4 Years: $35.96)
National Geographic (1 Year: $19.00, 2 Years: $30.00)
Astronomy (1 Year: $13.99, 2 Years: $27.98, 3 Years: $41.97)
National Geographic History (1 Year: $15.95)
News
Reader's Digest (1 Year: $6.95)
New York (1 Year: $5.99, 2 Years: $11.98, 3 Years: $17.97, 4 Years: $23.96)
MAD (1 Year: $11.99, 2 Years: $23.98, 3 Years: $29.99)
Time (1 Year: $27.95, 2 Years: $49.95)
Guideposts (1 Year: $4.99, 2 Years: $9.98)
Health & Fitness
Weight Watchers (1 Year: $4.95, 2 Years: $9.90, 3 Years: $14.85, 4 Years: $19.80)
Men's Health (1 Year: $9.99, 2 Years: $19.98, 3 Years: $29.97)
Women's Health (1 Year: $4.95, 2 Years: $9.90, 3 Years: $14.85)
Muscle & Fitness (1 Year: $4.95, 2 Years: $9.90, 3 Years: $14.85)
Runner's World (1 Year: $6.95, 2 Years: $13.90, 3 Years: $20.85, 4 Years: $27.80)
Flex (1 Year: $4.95, 2 Years: $9.90, 3 Years: $14.85)
Life Extension (1 Year: $4.99)
Sports & Rec
ESPN (1 Year: $4.95, 2 Years: $9.90, 3 Years: $14.85, 4 Years: $19.80)
Runner's World (1 Year: $6.95, 2 Years: $13.90, 3 Years: $20.85, 4 Years: $27.80)
Backpacker (1 Year: $4.99, 2 Years: $9.98, 3 Years: $14.97)
Outside (1 Year: $4.99, 2 Years: $9.98)
Golf Digest (1 Year: $4.95, 2 Years: $9.90, 3 Years: $14.85)
Field & Stream (1 Year: $4.99, 2 Years: $9.98, 3 Years: $14.97)
Outdoor Life (1 Year: $4.99, 2 Years: $9.98, 3 Years: $14.97)
Bicycling (1 Year: $4.99, 2 Years: $9.98, 3 Years: $14.97, 4 Years: $19.96)
Slam (1 Year: $4.99, 2 Years: $9.98, 3 Years: $14.97, 4 Years: $19.96)
Sports Illustrated (6 Months: $9.99, 1 Year: $24.99)
Sports Illustrated Kids (1 Year: $18.95, 2 Years: $29.95)
Business
Entrepreneur (1 Year: $4.95, 2 Years: $9.90, 3 Years: $14.85, 4 Years: $19.80)
Consumer Reports (1 Year: $19.99)
INC (1 Year: $4.99, 2 Years: $9.98, 3 Years: $14.97, 4 Years: $19.96)
Fast Company (1 Year: $4.99, 2 Years: $9.98, 3 Years: $14.97, 4 Years: $19.96)
Money (6 Months: $4.99, 1 Year: $9.99, 2 Years: $14.99)
Men
Men's Health (1 Year: $9.99, 2 Years: $19.98, 3 Years: $29.97)
GQ (1 Year: $4.95, 2 Years: $9.90, 3 Years: $14.85)
Men's Journal (1 Year: $4.99, 2 Years: $9.98, 3 Years: $14.97, 4 Years: $19.96)
Travel
Conde Nast Traveler (1 Year: $4.99, 2 Years: $9.98, 3 Years: $14.97)
Sunset (1 Year: $11.99, 2 Years: $14.99)
Photography
Outdoor Photographer (1 Year: $4.99, 2 Years: $9.98, 3 Years: $14.97)
Digital Photo (1 Year: $4.99, 2 Years: $9.98, 3 Years: $14.97)