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...and in the book "Software and Apps to Help the Suburban Astronomer" by Malcolm Zack, Andrew Gannon and John McRoberts (@SpringerNature, https://t.co/aHP32VFhPe) https://t.co/HE67Qq1X50
...and in the book "Software and Apps to Help the Suburban Astronomer" by Malcolm Zack, Andrew Gannon and John McRoberts (@SpringerNature, https://t.co/aHP32VFhPe) https://t.co/HE67Qq1X50
RT @HelenZack: Ideal Present for your Star-Gazing friend - Co-authored by @mzack2209 https://t.co/B2cSX446nb
Ideal Present for your Star-Gazing friend - Co-authored by @mzack2209 https://t.co/B2cSX446nb