28 pages includes a calendar and notebook for taking note this calendar will help you to take note for the month and also will help you to be motivated with the beautiful and inspirational Meteor picture in the cover and inside the interior to see and think about something nice because the brain when he sees something beautiful automatically think about something beautiful

STAY ORGANIZED: Asteroid Wall Calendar 2021HIGH QUALITY: 2021 Asteroid calendar - Size Closed: 8.5 x 8.5 Inch. Opened: 8.5 x 8.5 Inch. It does not bleed through! 13 Full-Color Images in our 2021 Asteroid Calendar! All 2021 Asteroid lover photos are hand-selected from a wide array of photographers from around the world! No compromises are made on image quality or content 2021 Asteroid wall calendar.STAY ON THE TOP OF YOUR LIFE - When life gets busy, and it seems so hard to keep track of all the important dates in your life and manage your time. Our beautiful calendar can help you become more efficient and you can control your own life with the help of our calendar. Live your own life and become a better version of yourself with this calendarThis a great gifts for your mother, father, teacher, brother, sister, daughter, son, cousin, grandmother, grandfather, grand sister, grand brother, aunt, fiancee, niece, nephew, coach, uncle, and best friends NEVER MISS AN IMPORTANT DATE AGAIN: With our calendar, you'll no longer be stressing out last minute to fit in forgotten things in your schedule. Everything is well organized and it will let you live the life you want to live without all the chaos. It's also a great gift for her or the women in your life.

Do You want To Organize Your Time? ✓ This Calendar Will Make Your Life Very organized And Happy! This is 2021 Comet calendar with Official Holidays, Very Beautiful calendar gift for Comet lovers and making Successful achievements This year. ✓This calendar are the perfect gift for any occasion: Christmas Gifts Halloween Gifts Veterans Day Gifts Thanksgiving Gifts Birthday Gifts Mother's Day Gifts Mindful Gifts new year wishes... Fill your upcoming Year with 18 months of Awesome Calendar all year round. ✓Features and details 18 Monthes JAN 2021 to JUN 2022 "8.5x8.5" Inch 18 Awesome Full Color photography Cute Glossy Cover Official Holidays ✓Fill your Years with success ! Everyone need to have this Calendar since the first of the year.Give it to yourself, friends, family and co-worker and have a great year together! For more Beautiful Calendars and Planners click on Author name to check it out...

Meteor Showers and their Parent Comets is a unique handbook for astronomers interested in observing meteor storms and outbursts. Spectacular displays of 'shooting stars' are created when the Earth's orbit crosses a meteoroid stream, as each meteoroid causes a bright light when it enters our atmosphere at high speed. Jenniskens, an active meteor storm chaser, explains how meteoroid streams originate from the decay of meteoroids, comets and asteroids, and how they cause meteor showers on Earth. He includes the findings of recent space missions to comets and asteroids, the risk of meteor impacts on Earth, and how meteor showers may have seeded the Earth with ingredients that made life possible. All known meteor showers are identified, accompanied by fascinating details on the most important showers and their parent comets. The book predicts when exceptional meteor showers will occur over the next fifty years, making it a valuable resource for both amateur and professional astronomers.

Do You want To Organize Your Time? ✓ This Calendar Will Make Your Life Very organized And Happy! This is 2021 Asteroids calendar with Official Holidays, Very Beautiful calendar gift for Asteroid's lovers and making Successful achievements This year. ✓This calendar are the perfect gift for any occasion: Christmas Gifts Halloween Gifts Veterans Day Gifts Thanksgiving Gifts Birthday Gifts Mother's Day Gifts Mindful Gifts new year wishes... Fill your upcoming Year with 18 months of Awesome Calendar all year round. ✓Features and details 18 Monthes JAN 2021 to JUN 2022 "8.5x8.5" Inch 18 Awesome Full Color photography Cute Glossy Cover Official Holidays ✓Fill your Years with success ! Everyone need to have this Calendar since the first of the year.Give it to yourself, friends, family and co-worker and have a great year together! For more Beautiful Calendars and Planners click on Author name to check it out...

The International Astronomical Union formalized the naming of meteor showers in 2006. Each newly discovered shower now is assigned a unique and officially recognized name, number, and 3-letter code. Close to a thousand possible meteor showers have since been reported, over a hundred in the cause of writing this book. Atlas of Earth's Meteor Showers takes stock of all reported detections by going back to the combined video and radar data in hand at the end of 2021, in order to weed out duplicates and false detections. Maps were created that show the direction of motion of meteors (their radiant) during 5-day and 10-day intervals throughout the year. All 500+ showers recognized are briefly described from their radiant, speed, and orbital elements, and the meteoroid mass distribution index was calculated. Physical properties of the meteoroids were derived from their beginning, peak and end height, from their deceleration in Earth's atmosphere, and from spectroscopic information. Candidate parent bodies are mentioned and the age of the stream was calculated from the dispersions in orbital elements and from the meteor magnitude distribution index. A brief history is given of the shower's discovery, of when features were first recognized, and of results from dynamical modeling, all with references to the literature. - Presents approximately 400 detailed meteor shower maps that show what showers are active on a given night for visual, video, and radar observers - Provides thorough descriptions of each shower that can be used in planetary astronomy and for meteor observing sessions, the discovery of new showers, and planetary defense - Highlights periodic, unusual showers that may be expected on a given night based on past occurrences that are important to satellite hazard avoidance and meteor storm chasing