2023 Sept. – Recovery of Comet P/2023 RL_75 = P/2002 T6 (NEAT-LINEAR) = 472P at Calar Alto Schmidt => MPEC => CBET 5306

2023 Sept. – 2023 RY3 – Discovery of the second NEO at Calar Alto Schmidt => MPEC => MPC-Database

2023 July – Recognizing of my 100th minor planet discovery => Minor Planet Number 621048 in MP-Circular 20230706

2022 Dec. – In 2022 I could recover the comets 448P and 451P at Calar Alto Schmidt, see CBETs 5164 and 5177

2022 Feb. – 2022 DX – Discovery of the first NEO at Calar Alto Schmidt => ESA Newsletter => MPEC => MPC-Database

2021 Dec. – In 2021 I could recover 7 comets at Calar Alto Schmidt, see CBETs 4919, 4920, 4933, 4943, 5025, 5048, 5078

2021 Nov. – Publication of the unique star system „J1832.4-1627, the first intermediate polar“ in A&A 657, A101 (2022) => J1832.4-1627, the first star system of its kind => Press release by Calar Alto Observatory

2020 Dec. – In 2020 I could recover 7 comets at Calar Alto Schmidt and ESA OGS, see CBETs 4758, 4835, 4847, 4874, 4903, 4910, 4918

2020 Oct. – Recovery of Comet 2020 U1 = P/2013 TL117 (LEMMON) at Calar Alto Schmidt => MPEC => CBET4874

2020 Sept. – Recovery of the hazardous asteroid 2009 DM45 at ESA OGS => Animation => MPEC
-> 13 search fields (about 8 degrees) were taken in 2012, but I could not found the object.  Reanalyzed in 2020, using new Software Tycho, I was successful. Detailed  story (in German)

2020 Sept.  – Recovery of Comet 2020 R3 = P/2006 H1 (McNaught) at Calar Alto Schmidt  => MPEC => CBET4847

2020 Aug.  – Recovery of Comet 2020 Q3 = P/2002 T5 (Linear) at Calar Alto Schmidt  => MPEC => CBET4835

2020 April  – Recovery of Comet 2020 H1 = P/2005 JD108 (Catalina-NEAT) at ESA OGS  => Animation => MPEC => CBET4758

2019 Aug. – First Observation of Comet 76P/West-Kohoutek-Ikemura on its 7th return => Animation => MPC-Database
->   The observation was made with the same telescope, which Mr. Kohoutek used for his discovery at Hamburg-Bergedorf in 1975

2019 July  – Discovery of Variable Star 000-BNG-512 at Calar Alto Schmidt  => Variable Star Index (VSX) => Animation => BAV-publication

2018 Dec.  – Recovery of Comet 2018 X1 = P/2005 GF8 (LONEOS) at ESA OGS => Animation => MPEC => CBET4581

2018 Aug. – Recovery of Comet P/2018 P1 = P/2010 A1 (Hill) at ESA OGS => Animation => MPEC => CBET4538

2018 Aug. – Recovery of Comet P/2018 P2 = P/2001 T3  (NEAT) at ESA OGS  => Animation => MPEC => CBET4539

2018 June. – Recovery of Comet P/2018 L3 = P/2005 R1 (NEAT) at ESA OGS => CBET4526

2018 Apr. – Recovery of Comet P/2018 H1 = P/2011 CR42 (CATALINA) at Calar Alto Schmidt => CBET 4510 => Calar-Alto-News

2018 Mar. – Recovery of Comet P/2018 F2  = P/2005 JN (SPACEWATCH) at ESA OGS and Calar Alto Schmidt => CBET 4497

2018 Feb. –   „A large fast-rotating Asteroid“ – Rotation period Determination of PHA 2018 AM12 => ESA News => MPBu-publication

2018 Jan. – Recovery of Comet P/2018 A2 = P/2013 CU129 (PANSTARRS) at Calar Alto Schmidt => CBET 4474

2017 Nov. – very close approacher 2017 UJ2, observed 11 hours after discovery => ESA NEOCC Newsletter => Movie

2017 Oct.  –   Follow-up observations of ‚Oumuamua, the first interstellar object found in our Solar System => ESA News

2017 Sept. – Recovery of Comet P/2017 S1 = P/2010 P4 (WISE) in collaboration with ESA => Circular of CBAT

2017 June – Recovery of Comet 2017 M2 = P/2004 T1 (LINEAR-NEAT) in collaboration with ESA => Circular of CBAT

2016 July   –     Recovery of Comet P/2016 N1 = P/2008 J3 (McNAUGHT) in collaboration with ESA => Circular of CBAT

2016 June   –     Recovery and identity found of Comet P/2010 N1 (WISE) = 2016 GE216 in collaboration with ESA => Circular of CBAT

2016 Feb.    –     Recovery of Comet P/2016 A9 = P/2008 Y2 (Gibbs) in collaboration with ESA => Circular of CBAT

2016 Jan.    –     Recovery of Comet P/2016 A4 = P/2001 F1 (NEAT) in collaboration with ESA => Circular of CBAT

2015 Sep   –   Frankfurter entdecken neuen Planeten (Kleinplanet namens Skywalker) => Video auf YouTube

2015 Feb.   –   Discovery of the hazardous asteroid 2015 BK515 in collaboration with ESA

2014 July    –   Recovery of comet Lagerkvist-Carsenty (P/1997 T3 ) in collaboration with ESA

2014 June   –   Recovery of comet P/2003 U3 (NEAT) in collaboration with ESA

2012 Nov. – „Another recovery – 2009 XZ1 found again“ in collaboration with ESA

2012 Sept.  –   Recovery of the hazardous asteroid 2008 SE85 in collaboration with ESA

                          Wiederentdeckung des gefährlichen Asteroiden 2008 SE85 in Zusammenarbeit mit der ESA

2010 Nov.  –    Die Entdeckung eines Kleinplaneten der Hilda-Klasse an der Tzec Maun Sternwarte

2010 Okt.  –     Die Entdeckung eines die Marsbahn kreuzenden Asteroiden an der Tzec Maun Sternwarte

2009 Juni   –    Das spanische Observatorio de La Sagra tauft einen Kleinplaneten Erwinschwab

2009 Apr.   –    Tzecmaun, the first named Minor Planet of the discoveries at the Tzec Maun observatories

2009 Apr.   –    Frankfurt jetzt auch am Himmel, erstmalig bekommt eine Entdeckung der Taunus-Sternwarte einen Namen

2009 Febr.  –   Entdeckung des gefährlichen Asteroiden 2009 DM45 auf der Taunus-Sternwarte

2007 Sep.  –     Die Entdeckung eines Jupiter-Trojaners an der Taunus-Sternwarte

2007 Jan.  –     Die Entdeckung eines die Marsbahn kreuzenden Asteroiden an der Taunus-Sternwarte

2006 Nov.  –     Die erste Kleinplaneten-Entdeckung der Taunus-Sternwarte

2001 Jan.   –    Beobachtungszeit am Calar Alto Observatorium

1998 Feb.   –     Meine erste Kleinplaneten-Entdeckung an der Starkenburg-Sternwarte

1981 Okt.  –       Meine erste astrometrische Messung eines Kleinplaneten an der Starkenburg-Sternwarte

1980 Dez. –       Mein erstes Foto eines Kometen