Månens faser under April
- 2019-03-28: Avtagande halvmåne
- 2019-04-01: Månen längst från jorden (405600 km)
- 2019-04-05: Nymåne
- 2019-04-12: Växande halvmåne
- 2019-04-16: Månen närmast jorden (364200 km)
- 2019-04-19: Fullmåne
- 2019-04-26: Avtagande halvmåne
- 2019-04-28: Månen längst från jorden (404600 km)
- 2019-05-04: Nymåne
Kvällshimlen under April
- 2019-04-02: Månen 3° söder om Venus
- 2019-04-03: Månen 4° söder om Merkurius
- 2019-04-08: Månen 8° söder om Pleiaderna (Alcyone)
- 2019-04-09: Månen 5° söder om Mars
- 2019-04-09: Månen 2° norr om Aldebaran
- 2019-04-10: Venus 0.3° söder om Neptunus
- 2019-04-13: Månen 7° söder om Pollux
- 2019-04-15: Månen 3° norr om Regulus
- 2019-04-16: Merkurius och Venus närmast varandra, 4.5°
- 2019-04-16: Mars 7° norr om Aldebaran
- 2019-04-18: Månen 8° norr om Spica
- 2019-04-22: Månen 8° norr om Antares
- 2019-04-22: Lyriderna i maximum, radianten 10° sydväst om Vega
- 2019-04-23: Månen 1.5° norr om Jupiter
- 2019-04-25: Månen 0.5° söder om Saturnus.
Rymdfartshistoria under April
- 1960-04-01: TIROS 1, Cospar-ID 1960-002B
- 1963-04-02: Luna 4, Cospar-ID 1963-008B
- 1968-04-04: Apollo 6, Cospar-ID 1968-025A
- 1991-04-05: Compton Gamma Ray Observatory, Cospar-ID 1991-027B
- 1962-04-06: Kosmos 2, Cospar-ID 1962-009A
- 1973-04-06: Pioneer 11, Cospar-ID 1973-019A
- 1964-04-08: Gemini 1, Cospar-ID 1964-018A
- 1970-04-11: Apollo 13, Cospar-ID 1970-029A
- 1961-04-12: Vostok 1, Cospar-ID 1961-012A
- 1959-04-13: Discoverer 2, Cospar-ID 1959-003A
- 1960-04-13: Transit 1B, Cospar-ID 1960-003B
- 1959-04-14: Vanguard SLV 5, Cospar-ID VAGSL5
- 1960-04-15: Discoverer 11, Cospar-ID 1960-004A
- 2005-04-15: DART, Cospar-ID 2005-014A
- 1972-04-16: Apollo 16, Cospar-ID 1972-031A
- 1962-04-23: Ranger 4, Cospar-ID 1962-012A
- 1967-04-23: Soyuz 1, Cospar-ID 1967-037A
- 1971-04-23: Soyuz 10, Cospar-ID 1971-034A
- 1962-04-24: Kosmos 3, Cospar-ID 1962-013A
- 1961-04-25: Mercury Atlas 3, Cospar-ID MERCA3
- 1962-04-25: Saturn SA-2, Cospar-ID SATURNSA2
- 1990-04-25: Hubble Space Telescope, Cospar-ID 1990-037B
- 1962-04-26: Ariel 1, Cospar-ID 1962-015A
- 1962-04-26: Kosmos 4, Cospar-ID 1962-014A
- 1961-04-27: Explorer 11, Cospar-ID 1961-013A
- 1958-04-29: Vanguard TV5, Cospar-ID VAGT5
Aktiviteter under April
- 2019-04-01: Gregori Aminoff Prize symposium
- 2019-04-01: A Brief History of Environmental Successes
- 2019-04-02: Ingvar Lindqvistdagen
- 2019-04-11: Water and ice – one molecule, many mysteries
- 2019-04-12: International Day of Human Space Flight
- 2019-04-25: Launch Orbiting Carbon Observatory 3
Några launches nyligen
| Launch | Namn | Cospar-ID |
|---|---|---|
| 2019-01-10 | ChinaSat 2D | 2019-001A |
| 2019-01-11 | Iridium 180 | 2019-002A |
| 2019-01-11 | Iridium 176 | 2019-002B |
| 2019-01-11 | Iridium 168 | 2019-002C |
| 2019-01-11 | Iridium 173 | 2019-002D |
| 2019-01-11 | Iridium 169 | 2019-002E |
| 2019-01-11 | Iridium 172 | 2019-002F |
| 2019-01-11 | Iridium 175 | 2019-002G |
| 2019-01-11 | Iridium 171 | 2019-002H |
| 2019-01-11 | Iridium 170 | 2019-002J |
| 2019-01-11 | Iridium 167 | 2019-002K |
| 2019-01-18 | ALE 1 | 2019-003G |
| 2019-01-19 | USA 290 | 2019-004A |
| 2019-01-21 | Jilin 01-09 | 2019-005B |
| 2019-01-21 | XiaoXiang 3 | 2019-005C |
| 2019-01-21 | Lingque 1A | 2019-005A |
| 2019-01-21 | Jilin 01-10 | 2019-005E |
| 2019-01-24 | Kalamsat V2/PSLV | 2019-006B |
| 2019-01-24 | Microsat R | 2019-006A |
| 2019-02-05 | GSat 31 | 2019-007B |
| 2019-02-05 | SaudiGeoSat 1/HellasSat 4 | 2019-007A |
| 2019-02-21 | Egyptsat A | 2019-008A |
| 2019-02-22 | Nusantara Satu | 2019-009A |
| 2019-02-22 | Beresheet | 2019-009B |
| 2019-02-27 | OneWeb 0012 | 2019-010A |
| 2019-03-02 | Crew Dragon Demo 1 | 2019-011A |
| Launch | Namn | Cospar-ID |
Newsfeed
- 2019-03-22: What Ionized the Universe?
- 2019-03-20: The Rise and Fall of Ziggy Star Formation and the Rich Dust from Ancient Stars
- 2019-03-19: Astronomers Find ’Cannonball Pulsar’ Speeding Through Space
- 2019-03-13: Astronomers Discover 83 Supermassive Black Holes in the Early Universe
- 2019-02-20: SOFIA Uncovers Clues to the Evolution of Universe and Search for Life
- 2019-02-19: Citizen Scientist Finds Ancient White Dwarf Star Encircled by Puzzling Rings
- 2019-02-14: Where is the Universe Hiding its Missing Mass?
- 2019-02-07: Liberal Sprinkling of Salt Discovered around a Young Star
- 2019-02-06: Bubbles of Brand New Stars
- 2019-02-05: Retreating Snow Line Reveals Organic Molecules around Young Star
- 2019-02-01: An Exoplanet With an 11-Hour Orbit
- 2019-01-25: A Primordial Star Forming Galaxy
- 2019-01-10: Astronomers Study Mysterious New Type of Cosmic Blast
- 2019-01-09: Hubble sees the brightest quasar in the early Universe
- 2019-01-01: Early Protostar Already has a Warped Disk
- 2018-12-21: Intermediate Mass Black Holes Discovered in Galactic Nuclei
- 2018-12-20: ALMA Gives Passing Comet Its Close-up
- 2018-12-20: Faint starlight in Hubble images reveals distribution of dark matter
- 2018-12-20: Seeds of Giant Galaxies formed in the Early Universe
- 2018-12-18: Mystery of coronae around supermassive black holes deepens
- 2018-12-17: Subaru Telescope Discovered the Most-Distant Solar System Object ever Observed
- 2018-12-17: The Most-Distant Solar System Object ever Observed
- 2018-12-14: Fragmenting Disk Gives Birth to Binary Star ’Odd Couple’
- 2018-12-12: Dancing with the Enemy
2019-01-21 Blodmåne (Foto: Magnus Norden)
2014-11-25 Skymning över Brunnsviken (Foto: Magnus Norden)
2011-12-10 Månförmörkelse (Foto: Magnus Norden)
