Neil Armstrong never capitalized on his celebrity and just wanted to be part of a team — yet ended up making history and becoming an American hero, fellow astronauts said Friday as mourners gathered to celebrate the life of the first man to walk on the moon.

Ex-astronauts, political and business leaders, family and friends gathered in suburban Cincinnati at a private club for a closed service for Armstrong.

Ohio Senator Rob Portman, pictured here addressing the Republican National Convention in Tampa, Fla., on Wednesday, spoke at Friday's memorial service for Armstrong. (J. Scott Applewhite/Associated Press)

"America has truly lost a legend," said fellow Apollo astronaut Eugene Cernan, who said Armstrong was a hero who "came from the culture of our country," growing up on a western Ohio farm, flying combat missions and then joining the space program.

A program stated that the service would include a U.S. navy ceremonial guard and comments by Armstrong's two sons and Senator Rob Portman of Ohio.

A flyover by navy fighter planes was planned at the end of the service, in tribute to Armstrong's pilot service in the navy, which included combat missions in Korea.

Children's health fund honours Armstrong's memory

Armstrong died last Saturday at age 82 of complications from heart surgery. Family spokeswoman Allison Ryan said there would be a national memorial service in Washington Sept. 12.

Astronaut Eugene Cernan, right, and patient Shane DiGiovanna, left, helped launch a children's health fund in memory of Neil Armstrong at the Children's Hospital in Cincinnati Friday. (Al Behrman/Associated Press)

No guest list for Friday's memorial was released, but among some 10 former astronauts attending were space pioneer John Glenn and Armstrong's fellow Apollo astronauts Cernan, James Lovell and William Anders.

Earlier Friday, Cernan and Lovell spoke at a Cincinnati hospital to help launch a children's health fund in Armstrong's memory.

Cernan and Lovell recounted visiting U.S troops in Iraq and Afghanistan with Armstrong, saying he always had an inspirational impact when meeting troops, schoolchildren and other admirers around the world.

Lovell said Armstrong was "a great American" who never capitalized on his celebrity and just "wanted to be a team player." While Armstrong said any of the astronauts could have been the first to walk on the moon, Lovell and Cernan said Armstrong was the right choice for the way he handled suddenly becoming an icon.

"There's nobody that I know of that could have accepted the challenge and responsibility that came with being that with more dignity than Neil Armstrong," Cernan said.

Apollo astronaut recalls regular guy

Cernan was the last astronaut to walk on the moon. Lovell was commander of Apollo 13 when an oxygen tank in the spaceship exploded and caused the moon mission to be aborted.

'Neil Armstrong was probably one of the most human guys I've ever known in my life.'— Eugene Cernan, ex-astronaut

Lovell and Cernan said they had visited Armstrong two months ago in his suburban Indian Hill home, and he cooked breakfast for them — and burned the eggs, Cernan said.

"Neil Armstrong was probably one of the most human guys I've ever known in my life," he said.

Armstrong's family has suggested memorial contributions to two scholarship funds in his name or to the Neil Armstrong New Frontiers Initiative at Cincinnati Children's. His wife, Carol, is on the hospital's board.

Lovell and Cernan were joined at Friday's hospital fund launch by 14-year-old Shane DiGiovanna, an aspiring aerospace engineer with a rare skin tissue disease who is able to hear thanks to a cochlear implant device developed by a NASA scientist.

Before the announcement, Shane, who said Armstrong has always inspired him, quizzed the two astronauts about details of their missions. Lovell recounted the streams of oxygen that wrapped their spacecraft "like a cocoon" after the tank explosion.

The harrowing flight was recounted in his book and depicted in the popular movie Apollo 13 , in which Tom Hanks played Lovell.

Cernan told him he was disappointed that the U.S. manned spaceflight program was halted but predicted Americans would someday return to the moon and that Shane's generation would reach Mars.

Love of aviation

Relatives described Armstrong, who largely shunned publicity after his moon mission, as "a reluctant American hero."

Raised in Wapakoneta, he developed an early love for aviation. He served as a U.S. navy pilot, then became a test pilot after finishing college. Accepted into NASA's second astronaut class in 1962, he commanded the Gemini 8 mission in 1966.

An undated image showing Neil Armstrong posing with an X-15 plane. During re-entry from flight training at 207,000 feet in the X-15, Armstrong, who had an early love of aviation, inadvertently overshot Edwards Air Force Base in California, heading south at Mach 3 and 100,000 feet altitude. (NASA/Associated Press)

He then commanded Apollo 11's historic moon landing on July 20, 1969. As a worldwide audience watched on TV, Armstrong took the step on the lunar surface he called "one giant leap for mankind."

After his space career, he returned to Ohio, teaching aerospace engineering at the University of Cincinnati and generally avoiding public view for most of the rest of his life.

Armstrong married Carol Knight in 1999. He had two sons from a previous marriage.

Two UC student groups interested in space will gather Friday evening on a campus lawn with telescopes for viewing the moon and to hear some of Armstrong's former students speak.

In announcing his death, Armstrong's family requested that when people "see the moon smiling down at you, think of Neil Armstrong and give him a wink."

Fittingly, Friday's service was held on the same day that a so-called blue moon would take place, a rare event when two full moons occur in the same month.